The super vac-u-lock - realistic dildo by Doc Johnson - review by Linga

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Gives A Whole New Meaning To Rock Hard!

The Super Vac-U-Lock is a great medium length dildo that has enough girth to be a challenge. It has exaggerated ridging and a thick well formed head to hit all the good spots so if you are looking for a thick, firm cock to rock your socks, then this could be for you.
-Great for insertion (if you like really hard dildos and don't mind some texture)
-Too firm for oral practice
Rating by reviewer:
extremely useful review


The Super Vac-U-Lock is a realistically styled dildo with a scrotum base that is made from pure silicone and designed to be used with the Vac-U-Lock system via a hole at the dildos base. The Vac-U-Lock system is a patented way of attaching specially made dildos and vibrating cocks to harnesses, strap-ons and other items via a peg and hole type of system. The Vac -U-Lock system also gives you the freedom of changing the the "insertable" to suit your mood.

I originally bought this dildo because it's the same shape as an old favourite but made from safer materials. The dildo that it replaced was a clear jellie version and I used to love practicing my oral techniques on it but as you know jellie is quite unstable and not very safe. The jellie version ended up "melting", taking on the texture of anything it came in contact with and so I bought the Super Vac-U-Lock instead.
  • Who / How / What
    [ ? ]
    Who might this product be best for? How is it best used? What are the best circumstances or situations for using this product?
    • Couples
    • Solo
  • Where
    [ ? ]
    Where / what types of places can this product be used?
    • Anywhere
    • Campus/roommate living
    • Tub/shower/pool
  • Features
    [ ? ]
    What kind of features does this product offer?
    • Travel friendly
  • Body / part areas
    [ ? ]
    What areas on the body can this product be used / what areas does it stimulate best?
    • Anal

Material / Texture

The Super Vac-U-Lock or "The Rock" as I affectionately call mine is made from food grade silicone and since it is, it comes with all the added benefits like being hypo-allergenic, non-porous, latex free and phthalates free! This particular silicone would have to be the firmest silicone I've ever felt, it really is quite hard and probably wouldn't be the best choice if you like something that feels realistic.

The Rock is designed to look like a real cock and so it has ridges and veins along the shaft and a fairly prominent head, probably more prominent than an actual penis. Since the material is so hard, every vein and ridge can be felt in use and probably won't be any good for anyone who doesn't like texture or anyone new to texture.
Apart from the texture that is part of the realistic design the Rock really has no other texture at all, it is a perfectly smooth sort of silicone that has a fair amount of drag but no velvety-ness that you can feel with your finger tip.

The silicone of the Super Vac-U-Lock only has a light smell, that is only detectable when put right up to your nose and is completely tasteless but even so I recommend giving it a rinse before use because it does get dusty.
    • Harness compatible
    • No odor
    • Not porous at all

Design / Shape / Size

As I mentioned before the Super Vac-U-Lock is a realistically designed dildo, even if that realism is over exaggerated in some details. The tip of the toy is a large rounded head with a very substantial corona (that's the ridge around the head of the penis) which measures 1 5/8" in diameter or 5 3/4" in circumference.
The shaft of this toy is only slightly thinner at 5 1/4" in circumference and has a long ridge down the underside that stretches from the frenulum all the way down the the scrotum area where it splits off into two ridges, one over each "testicle". I use the term testicle because even though this dildo is realistically designed, they have stylised the balls a bit. They don't have any of the usual wrinkles and veins that realistic toy usually have, instead they are just two very firm "lumps" that loosely resemble a scrotum.
    • Realistic


I did originally buy this dildo to replace the one that I had in jellie. Mainly I wanted it to suck on and practice my oral skills (you can never practice too much) specifically deep throating. Now it didn’t work so well for MY intended purpose but as an actual dildo I really like it.
I love that you can feel every ridge because it is made of a firmer than usual silicone. I would caution anyone who doesn't like really firm toys to steer clear because this baby has virtually no give.
    • Easy to use
    • Not discreet at all

Care and Maintenance

Keeping the Super Vac-U-Lock clean is as simple and has as much variety as any other fully silicone, non-poered toy. A good lather with some warm water and soap or even anti-baterial soap. You can even toss it in a pot of boiling water for a few minutes or the dishwasher on the top shelf. Silicone can even be washed with a 10% bleach solution.

Storage for this toy gives you a lot of options too. I personally store mine free standing on a shelf in my built in wardrobe but you could easily keep the packaging it came in, pop it in a bag or box or even tucking it away in drawer.
    • Easy to clean
    • Easy to store


Unfortunately the Super Vac-U-Lock didn't work so well for oral practice and ended up being far to hard for anything oral related, it has almost no give at all and would give me a very sore jaw after only a few minutes. It also makes a loud squeaking noise on the roof of my mouth which is a terrible mood killer.
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Do you like this review?
  • Ivy Wilde
    Thanks for the review. Sorry the dildo didn't work for practicing your oral, but it sounds like you found other ways to enjoy it.
  • Shellz31
    Lol - The Rock! I'm surprised it's so hard. I like the look of it, but I prefer more flexibility to my dildos. The ridges do look like a lot of fun.

    Great review
  • Lucky21
    Fantastic review! Thanks!
  • ToyGurl
    This one just looks scary to me! I don't know why, considering I use some scary stuff myself. It just seems so... rock hard! lol. But I'm a glass lover so who knows
  • melissa1973
    Looks like fun I might give it a go
  • P3ngu1n78
  • SadoMas
  • Bignuf
    Thanks for a good, helpful review!
  • Kat and Aaron(aaron)
    Thank you for the info. Great review.
  • spiced
    Great review! For oral practice, I'd recommend something UR3; I LOVE sucking on my Noches Latinas realistic. It's a LOT like the real thing in terms of look and texture.
  • sugar&spikes
    thanks for the review !
Discussion Posts Last Update
Curious about this dildo's flexibility 3
Where to find the suction-cup accessory 4
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