Vac-U-Lock is Doc Johnson’s attempt at making an attachment system for dildos.
Every toy comes equipped with a hole on its base and the attachments are made to plug into said hole. Once inserted, the shape of the plug causes a vacuum and should be very stable during use.
While Doc Johnson used to be the only company offering Vac-U-Lock attachments and toys, tons of third-party companies have jumped on the bandwagon throughout the years. It has even become the standard attachment for most Fuck Machines available today.
Sadly, there isn’t much information out there on the subject & tons of non-body-safe Vac-U-Lock dildos circulating around. So throughout the course of this article, we’ll cover the best Vac-U-Lock dildos as well as the best Vac-U-Lock attachments the world has to offer.
Dildo dealer pro-tip #1: Using a bit of water-based lube will make inserting and removing your inserts a whole lot easier.
Dildo Dealer Pro Tip #2: When removing your attachments, try tilting the accessories on the side to break the vacuum instead of pulling straight on.
Obviously, Doc Johnson offers plenty of dildos for their Vac-U-Lock system.
Sadly, most of the official toys aren’t body-safe and come in porous and impossible to sanitize materials.
Strangely, a few years back, the old Doc seemed to be catching up with the current body-safe sex toy revolution. They even released the silicone “Platinum Collection” for Vac-U-Lock systems and everything was good in the world.
But…they recently discontinued most of these dildos and are now back to only selling porous and unsafe Vac-U-Lock dildos. Way to go Doc Johnson, you almost had our respect back.
TL;DR: please avoid Doc Johnson’s Official Vac-U-Lock as none of them are currently body-safe.
Unofficial Vac-U-Lock Dildos
With the official selection of body-safe dildos out of the question, I have no idea what we’d do without third-party toys.
Very strange how the company that’s essentially invented the concept has pretty much abandoned it while other brands are keeping the flame alive.
These brands also offer a level of quality and variety that you won’t find in Doc Johnson’s options mentioned above. So whether you’re looking for basic, ultra-realistic, fantasy, or very large toys, there’s bound to be something for you.
Blush’s Realm & Lock On Collection
If it wasn’t for Blush, there would be very little choice to pick from in terms of affordable & realistic Vac-U-Lock Silicone dildos. Thankfully, they just released two collections to help fill the void left by the death of the Platinum Collection and we couldn’t be more grateful.
Their Lock On collection focuses on realistic dildos mainly. On the other hand, their Realm collection features a nice selection of large realistic dildos as well as some affordable fantasy options.
I only wish they made more unrealistic options to pick from for those who aren’t into uncanny or fantasy toys. But hey, we’ll take what we can get!
Update:Sadly, thanks to the pandemic, GST had to temporarily close their doors. It’s not exactly clear when they’ll come back but they sound like as soon as things go back to normal they’ll be resuming their activities.
Geeky Sex Toys make gorgeous and just amazing fantasy designs with a geeky twist.
While they don’t specialize in Vac-U-Lock dildos by any means, the little toys they put out for this system rivals pretty much anything Doc Johnson has done for Vac-U-Lock.
Right now they only have two Vac-U-Lock toys, but each of them comes with their very own unique Vac-U-Lock accessories as well. So you really get two toys for one in this case! Plus, Geeky Sex Toys put out brand new collections and toys all of the time, so definitely check back on them as they might release more Vac-U-Lock dildos.
As of now, they have the Master Dildo Sword & the Mermaid Dildo of the Deep.
If you’re not going a little nuts right now, you might not be as much of a geek as I am. But bear with me!
The Master Dildo Sword is of course a take on Link’s Master Sword. It comes with a nice metallic grey silicone dildo and a sweet Vac-U-Lock sword handle. Needless to say it is definitely perfect for Nintendo fanboys & girls and for all your kinky cosplay needs!
The Mermaid Dildo of the Deep is a gorgeous silicone toy that comes in two sizes. While you might think the base is just a nice way to display your toy, it’s actually a beautiful Vac-U-Lock suction cup that works way better than any other official Vac-U-Lock suction cup ( more on this below ).
From the makers of the uncanny and luxurious RealDolls comes the most realistic dildo ever made.
The two layers of silicone found on these act like any other dual-density blend, with one big difference: The second layer is not attached to the first, acting like a realistic layer of skin that’s slides up and down as you thrust. That’s without counting the meticulously hand-painted layer of silicone on the outside which provides the uncanny realism!
This is really one of the best Vac-U-Lock dildo options you can get. But it’s also one of the most expensive as well!
Just make sure to practice on a cheap toy if you don’t want to ruin your favorite high-end dildo.
Here are some of the best toys with bullet holes:
Tantus is not only the obvious choice here but also one of the best & most varied choices when it comes to silicone dildos!
There are really tons of options to pick from here and any of their suction cup/vibrating dildos will be compatible. I would also keep an eye out for the O2/dual-density dildos with bullet holes as well.
Fleshlight and Fleshjack make tons of great realistic, squishy, and affordable replicas of various porn stars.
The only difference here is that Fleshlight sells replicas of hetero stars while Fleshjack is all about gay stars! These are also the most realistic colors you’ll find on dildos as they really try to replicate the complexion of the stars concerned here.
The Jollet is tailor-made to fit the female anatomy and comes in the quirkiest designs you’ve ever seen!
While the bullet hole was clearly made for bullet vibes as the extra length of the dildo is meant to be curved over her pubic bone and rubbed against her clitoris it is still perfect for your attachments! Just keep in mind that this will stretch out the hole, limiting your options of bullet vibes. ( Go for the ones on this article if this happens! )
Sadly, they don’t make any for their great Vixskin material except for a few VERY limited editions. But their basic silicone is so nice and squishy I won’t complain!
Best Vac-U-Lock Attachments
If you’re planning on getting a Vac-U-Lock Harness, there are plenty of options to pick from.
The Biggest advantage with these harnesses is that they’re some of the most stable options in the strap-on world. This is because the Vac-U-Lock adapter leaves no room for wiggling around like most classic O-Ring systems.
In general, they’re all pretty cheap, which is a big plus for people starting out.
That being said, The Vac-U-Lock Harness system is by no means perfect. You see, the square base on every Vac-U-Lock Adapter might become a little uncomfortable over extended and/or rough play.
But if you replace the adapter with a Vac-U-Lock Suction cup, nothing stops you from using regular universal O-ring harnesses.
So unless you enjoy a bruised up pubic bone, you might want to invest in a comfortable (but more expensive) Strap-on like the great Joque harnesses or simply get a Sili Saddle to add some cushioning for your pubic bone.
Supreme Harness by Doc Johnson
Like I mentioned before, almost every model they offer is pretty cheap, therefore great for starting out. But If you ever want to use any other toy that isn’t Vac-U-Lock compatible, you’re usually out of luck.
With the Supreme harnesses, you can use both the Vac-U-Lock and the traditional O-Ring system.
So whether you want to use your Vac-U-Lock dildos or any other toy with a base, you’re set. This obviously makes this harness the best Vac-U-Lock Strap-On you can get today.
It’s unisex and is the most comfortable harness in the collection in part due to the back support that won’t dig in your skin as you thrust.
The kit comes with a Vac-U-Lock Adapter, Differently Sized O-Rings, and plenty of strap length so it can fit bigger folks as well. I suggest cutting the straps to your desired length if you don’t want them dangling about.
Size king and queens rejoice, this is the ultimate harness for all your XL toy needs! Not only does it include a very comfortable and stable build, but there’s also an extra strap to support the weight of your toys!
It’s pricier than the entry-level Supreme harness, but its also much higher quality and made leather ( being from the famous Mr. S Leather, it’s really no surprise. )
Plus, if you remove the extra strap for XL toys, it turns into a perfect high-quality alternative to the supreme harness, regardless of whether you prefer large or small toys!
Just keep in mind it won’t be compatible with traditional O-Rings like the Supreme is.
Doc Johnson offers a wide range of Vac-U-Lock accessories, some being more useful than others. So If you don’t see it here, chances are they aren’t really worth it ( We’re looking at you E-Z rider ball ).
Thankfully, thanks to the popularity of the system, there are also some pretty great off-brand attachments worth taking a look at!
Vac-U-Lock Toy Holders
If you want to make the handling of your dildos a bit more interesting, the basic handle is great.
The extension it provides makes it a great option for both solo and couple play.
This Vac-U-Lock Attachment will let you connect two dildos of your choice together.
The great thing about this is that since everyone has their own personal tastes, you can really customize your double-ended combo to suit each other’s needs.
And since Vac-U-Lock systems offer a snug fit, you won’t have to worry about vibrations not traveling throughout your toys, wich is a common issue with a lot of wand attachments.
Another big plus over the other plastic attachments is that it is entirely made of silicone. This means it’s completely sanitizable and very durable, so it’ll last you a long time.
Otherwise, if you’re feeling a little more aggressive, this attachment is for you!
The Knuckle Duster Attachment should help to make any BDSM sessions a bit more interesting.
If you want to feel like Conan, conqueror of orifices, you’ll love Blush’s Realm sword handles.
Not only is it both hilarious and badass at the same time, it essentially works just as well as the official handle!
The Boneyard grip lock interlocking tool kit is probably my favorite little 2-in-one kit.
It comes with a great heavy-duty suction cup similar to the excellent one made by Mr. Hankey ( more on these below ) and a pretty nice heavy-duty handle. Both are much better than any of the official attachments.
Plus, If you want even more of a package deal, there are even two options that come with nice realistic black silicone dildos as well!
The official Vac-U-Lock suction cups from Doc Johnson are a bit hit and miss.
Being a bit too rigid, they’ll only work on very smooth surfaces, like glass, tiles, metallic surfaces, and plastic.
While they’ll work pretty flawlessly on Horizontal surfaces, don’t expect the same for walls and other vertical planes as the toys will tend to slide around on the surface before eventually coming off.
You can choose between their basic small suction cup that comes included with most kits or the larger model ( seen above ) that is supposed to work better with bigger toys.
Just avoid their deluxe suction cup, since it’s a pretty flimsy and ineffective build. A real shame since, if done well, this could’ve been a great attachment.
Though, as always, your success may vary since it always really depends on the surfaces you use as well as the weight of your toys.
Sadly, just like the official suction cups, they work much better on horizontal planes than vertical ones. A bit strange coming from Blush as they are known for making some pretty good budget dildos with effective suction cups.
But if you’re looking for the best performing suction cups, look no further than from the XL sex toy experts themselves: Mr. Hankey & Sinnovator.
Both are pretty phenomenal as they were designed to hold heavy XL dildos. But nothing stops you from using them on regular dildos as well! The real main difference between the two suction cups is the materials used & customization options
Mr.Hankey’s heavy-duty suction cup is made of silicone at the cup and aluminum at the stem and only comes in black. This is a perfect option for those who like a nice rugged look!
The Sinnovator suction cup on the other hand is completely made of silicone so it is very easy to sanitize and you can choose from a ton of colors if you wish to match it with your toys. The only downside is that it ships from the U.K. So if you’re not European, you might have to pay extra for shipping.
A big issue with the Vac-U-Lock hole is that it is too wide to fit traditionally shaped bullet vibes.
Most of them are just going to loosely rattle inside the hole and slip out. A real shame, especially for fans of the amazingly rumbly Tango.
But once more, I’ve done all the research for you and know of a few alternatives that are going to fit beautifully with your favorite Vac-U-Lock toys.
Screaming-O Charged Vooom
If you’re looking for a perfect entry-level bullet vibrator, it doesn’t get much better than this. The Vooom is pretty much your traditional cheap portable bullet vibrator on crack.
It is rechargeable, virtually silent, has 3 incremental constant vibration modes as well as 7 rhythmic pulsations. So compared to the only 1 to 3 Incremental vibrations you will find on most cheap bullets, this is already a big plus.
On top of that, the Vooom packs some pretty decent vibrations.
And while it might not rumble like the high-end toys, it still has plenty of power and rumbles to please most folks.
But most importantly, it doesn’t run on small shitty expensive watch batteries you have to replace every 30 minutes! Just recharge it through USB and you’re set.
So while you might spend 15 dollars less on a cheap standard bullet vibrator, the money you will save on batteries alone makes the Vooom essentially pay for itself.
This is a great cheap alternative to the amazing Tango by We-Vibe. It is almost as powerful with a ridiculous 20 functions.
It’s rechargeable by electromagnetic induction and covered for 1 year by the company, just like its higher-end counterpart.
Though This bullet vibrator fares pretty well in the shower it will likely die if used in the bath.
Also, a lot of people report that the charger stops working after a while. But back at the old sin bin, we’ve noticed that usually cleaning the metallic contacts on the bullet vibrator and the charger with rubbing alcohol does the trick at bringing it back from the dead.
It’s got a good suction cup as well so it is entirely hands-free if you want it to be!
It’s worth noting that this version of the Velvet thruster only offers 1.5 inches ( as opposed to 2.5 & 3.5 on their non-Vac-U-Lock models ) of stroke length to give it enough strength to handle most dildos.
This DIY Power Tool Modis a nice alternative If you can’t afford a sex machine or you mostly intend on playing with a partner, this is an awesome, powerful, and dirt-cheap option.
But if you want to ride solo or you’re looking for better stroke length, this isn’t the best choice.
F-Machineis your best alternative If you live in or around the U.K.
The Gigolo, their cheaper model features 240 strokes per minute and 1 to 4 inches of stroke length.
The Pro III, their flagship model, has just as many strokes per minute as the gigolo but offers 1 to 6 inches of stroke length with just enough torque to handle bigger toys as well.
F-Machine might not have all the options and crazy performances you can get from KTM machines, but it offers sleek, quality devices that should please most.
You can expect about 240 strokes per minute and 2 to 6 inches in stroke length and there’s also plenty of attachments and accessories to choose from.
They’ve also released a new version of the Hismith which supports app control over any distance!
The Lovense Sex Machine is probably my newest favorite machine to finally somewhat dethrone the affordable Hismith.
For a few bucks more this machine has more strokes per second ( 300 to be exact ), better app control as well as the option to make the machine double-ended for no extra fee.
It’s also the most affordable sex machine to have Chaturbate integration ( for all the sex cam workers out there! ).
To sweeten the deal, it also comes with 2 silicone dildos, Vac-U-Lock adapters, and a carry-case out of the box.
The Shockspotsare simply the best sex machines available on the market today. They outperform and have more features than any other machine money can buy.
These luxury fuck machines offer speeds up to 24 inches per second and about 105 pounds in torque.
The classic and Dual Thruster models offer 8 inches max in stroke length and there’s a 12-inch capable machine as well.
One of our favorite features is that you can control the stroke length directly on the controllers with no need to stop and interface with the machine itself.
These great machines also can be controlled by a PC, a remote control, or even with your partners Fleshlight with the V-Stroker Attachment.
WHERE TO BUY
There’s a lot of toys represented here. Click through the links in the entry titles to find out about the best places to buy!