Sinclair institute select onyx - prostate massager by Topco Sales - review by Horny & Holy

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A Glass Wand For The Hubby...

Ladies is your man jealous of your glass wand? Is he looking for strong prostate stimulation? If so then the Onyx is the toy for you. Just think, you could have His and Hers glass wands. Wedding registry maybe....
Glass material, artistic design, perfect size
Slightly heavy and awkward for partner play
Rating by reviewer:
useful review


A few months ago I ordered the Bent Graduate by Don Wands and instantly fell in love with glass toys. The smoothness and firmness were able to stimulate the G-spot like no other toy I have ever tried. And then my husband began to get jealous. We have tired a few prostate toys, mostly prostate vibrators and found moderate success. The Onyx was a venture in a new direction for us, a direction that worked well. This toy is designed to be used to stimulate the prostate with firm, direct pressure. It is curved to help with reaching the P-spot. While it can be used by a partner, we could never get comfortable with that. So he worked the Onyx on his prostate and I took care of the rest.
  • 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
    • 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
    • P-spot

Material / Texture

The Onyx is made of cyberglass and it is a beautiful work of art. It is black and the color is deep, dark, and slightly reflective and looks great. Since it is glass it can be cooled or warmed for temperature play. The weight of the toy is both a positive and a negative. First, because it is heavy glass it is durable and it is able to easily place strong (yet smooth) pressure on the prostate. But since it is slightly heavy (over a half a pound for only 8 inches long) it can easily tire your hand or wrist. It did wear on my hubby's hand and wrist but it brought him to orgasm so quickly it was not really an issue.
    • No odor
    • Not porous at all
    • Smooth

Design / Shape / Size

The design of this toy is simply breathtaking. While its design is very functional there is a aesthetic quality to it that I have not found with many toys. If you look closely at the pictures you can see the flower design printed on the toy. The shape of the toy is designed to be used best for solo play as far as we can tell. For him it was the perfect size (6" long, 1 1/4" in diameter). It will work well for beginners or experts since it is designed for specific stimulation of the prostate. There are two ends on the Onyx. One has a series of ridges and the other has graduated bulbs. Both are great for P-spot stimulation.
    • Beginner
    • Ergonomic
    • Whimsical / artistic


This toy is designed for one purpose: direct stimulation of the prostate (or G-spot but we did not try that). It is meant to be used by hand and is not harness compatible. This is a simple toy that is easy to use.
    • Comfortable
    • Easy to use

Care and Maintenance

Since this toy is glass it is non-porous and can be boiled to be sanitized. Still, this is meant to be used anally and you have to decide how comfortable you are with sharing this toy. Although this can be used for prostate or g-spot simulation, we have dedicated this toy for his use and his use only. Hey, everyone needs his and her glass wands.
    • Easy to clean
Follow-up commentary
This is a p-spot magnet. While I tried to use it on him, it worked better when he used this and I found something else to do with my hands!
This product was provided free of charge to the reviewer. This review is in compliance with the FTC guidelines.
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  • ToyTimeTim
    Good idea about his and hers.
    Nice review.
  • SydVicious
    Beautiful design. Good Review!
  • LittleBoPeep
    thanks for the review
  • Not here
    I like the way this looks! Great review!
  • SexyySarah
    this one looks interesting, thanks for the review!
  • Kindred
    That is one beautiful toy. Thanks for the review.
  • Waterfall
    Good review
    I've been thinking about how this one would work for g-spot stimulation... Glad your husband enjoyed it!
  • Naughty Student
    I would totally have stolen it from him if I were you, it looks gorgeous. Is there a little design on it? Great reivew.
  • Love Buzz
    Great Review, I just received one of these and will definitely be borrowing it lol
  • Sammi
    This does look nice
    Good review!
  • Airen Wolf
    We love this toy as well!
  • mikebooks
    Yeah... good product , good review.. thanks a lot!
  • BadgersRose
    Great review. Thanks
  • Breas
    Thanks very much!
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