The Gee Whiz can be attached to the head of your massager (Hitachi, Acuvibe...) to convert into a g-spot toy (cheers everyone!!) the flat end of the G-Whiz can also be used to stimulate the clit. Using the massager in this manner is more sanitary than using a massager alone because this attachment can be sterilized thereby reducing the risk of bacterial infection.

There is also a slight ridge right before the shaft protrudes away from the main covering. When the shaft is shoved inside the vagina, this slight bump is an effective clitoral stimulator. So it is possible to use this toy to convert your massager into a dual stimulator!

Since this toy can be sterilized, and since its massager-covering is wide enough to act as a flared base, I endorse the use of this toy anally! Though I haven't done this, I would imagine that it would produce some very interesting sensations. But be careful because your ass is probably not used to that much vibration!

The G Whiz is made out of 100% silicone rubber. Note that the package doesn't say "100% medical grade silicone," although this toy has no smell/taste. I am sure that this cover is still a very high quality! But since the material has the word rubber, make sure to sterilize this toy in boiling water (for 3 minutes) if you plan on sharing.

The silicone is very smooth, but my hand is met with some resistance when I stroke it. It does feel rubber-esque, however that doesn't really bother me. And I really like its blue and white tye-dyed appearance! It makes the toy more fun and appealing. But be warned - this toy is not discreet. If someone sees this toy, they will immediately know its purpose.

The shaft itself is free of bumps, with the exception of the tip which is molded to mimic the appearance of a real penis. I love the fact that this toy is completely smooth because it slides very easily in, and out, of my vagina. This toy is great for faster thrusting. But be careful because its floppy shape might make really rough thrusting difficult, especially if this toy is removed/almost removed from the vagina.

Also, the covering that slips on the massager is slightly textured, which helps it stay on the massager. Assuming care is initially taken to properly cover the massage head, the G Whiz should not fall off your massager.

The G Whiz mimics a slightly upturned penis when in use. If lube is applied, and the toy is not vibrating, it feels fairly realistic. This toy has an insertable length of 7". The diameter of the insertable portion is 1 3/8". It weighs about half a pound.

I also appreciated the slight clitoral bump because I require clitoral stimulation in order to orgasm. I am used to holding two different toys when I masturbate, so this was a refreshing change!

As with most non-solid toys, I wish that this toy was a little bit more stiff. But I have a strong preference for unyielding metal toys, so take my opinion on this matter with a grain of salt. Even though this toy is flexible, it doesn't feel excessively floppy/amorphous.

I was able to achieve a blended g-spot/clitoral orgasm with this toy, which means that this toy was well designed!

Since the G Whiz was simply meant to cover the head of a standard Hitachi (or Hitachi-esque) massager, it doesn't have any extra controls. Just carefully cover the massager head with this toy and you're ready to go!

This toy transmits the vibrations of my Hitachi very very well. But it does dampen them, which is probably a positive for most people. The vibrations are also very strong in the tip of the insertable part of the G Whiz. In fact, the vibrations in the tip feel as strong as a "normal" vibrator. so if your Hitachi is too strong, consider purchasing this product to weaken the vibrations.

This toy does make the Hitachi a little bit louder, but not much. If you're using the Hitachi regularly I doubt that you're concerned about the noise anyway.

Vixen recommends washing this toy with soap and water. The G Whiz can also be sterilized via boiling for 3 minutes. Vixen also recommends that you store this toy vertically in its included (clear) container to preserve the shape of this toy. I've had the G Whiz for about 5 months now and I haven't noticed any deformities in the material. Then again I haven't used it much because I use it with my Hitachi which is not a discreet vibrator.

Since this is a cover for an ELECTRIC massager, DO NOT use it with a massager near water. But you can take ONLY THE ATTACHMENT into the bath or shower for some flexible fun.

DO NOT USE SILICONE LUBRICANTS WITH THIS TOY

The packaging of this toy is very simple. It comes in a clear container with yellow lids (for the top and bottom). The instructions for this toy are printed on the container. This is definitely good for people like me who tend to throw manuals in the trash.

My only negative would be that this packaging is clear. I would have preferred to have an opaque case so I could leave it out. Even though the attachment is pretty, I don't need my Grandma seeing it if she comes over on the weekends with (delicious!) homemade muffins.

The G Whiz is my favorite attachment for my Hitachi. Though I wouldn't say it's "girthy" it definitely gives my vagina a workout. And the clitoral nub is genius! In my humble opinion, it is a much better dual stimulator than the G-Plus, which was specifically designed for this type of use.

I also own the G Whizzard (review to be posted). It is larger than the G Whiz. Its shaft also has extra bumps for "added pleasure." That's in quotation marks because I thought they felt odd. I would have preferred a smooth shaft, like the shaft on the G Whiz. But many other reviewers love the added stimulation, so I guess it just depends on your personal preferences. But this is still a high quality toy and a great investment.

I don't really use this toy because I don't use my Hitachi since it's loud. But if I lived in an apartment by myself you can be sure that I would use it much much much more. It's a quality purchase.

Since this toy does dampen the vibrations of the Hitachi, I feel a little better recommending it to beginners. But even the dampened Hitachi is still much stronger than most vibrators. So see my words of caution in my review of the Hitachi wand, because they apply here as well.