The tongue dinger is a vibrating "tongue ring". This toy is to be placed on the tongue using the stretchy band around the bottom of the bullet. The bullet portion of the toy cradles pretty nicely on the top of the tongue.

The tongue dinger's ring portion is made of TPR silicone material, which is fairly stretchy and squishy. This was somewhat of an issue, since there is so much saliva around the ring, so it really slips off easily. The bullet inside the ring takes 3 watch batteries.

The vibrating ring also has some small nubby style sensation features on the top for added pleasure for her (or him).

The material is TPR silicone, which makes for a very soft and "squishy" toy. There are nubbies on the top of the bullet for additional pleasure as well as small bumps on the ring itself (that attaches to the tongue). Not sure if it is to help holding it onto the tongue (for added "grip") or not, but it didn't help much.

We thought that the design was nice, simple and easy to figure out. The size was decent (while in the mouth) to where it wasn't choking us or anything. It worked well while it stayed on, but without it staying on very well, the experience didn't last very long.

Length: 1 1/4"
Circumference: 2"
Diameter 1/2"

The tongue dinger is "easy to use" in the sense that it's easy to figure out how to use it. Actually getting it to work while being used is another story. Because of the material of this toy and it being so small and flimsy, it didn't stay on my tongue very well at all. I do have a tongue ring, which I thought might help to "hold it on" better than for my wife, but it turned out to be just as much a "failure" as her trying without a tongue ring. It tends to make it hard to swallow too, which creates a lot of saliva, leading to a much worse situation with it slipping off.

There is a small switch on the side to turn it on or off. It's easy enough to access, as long as you're not trying to do so while it's on your tongue.

Because this toy is so small and with some ridges, it is somewhat difficult to clean. It is very squishy, which also makes for a harder time cleaning.

If you take the bullet out of it and just run it under some hot, soapy water, you should be fine, though. Dry it thoroughly, replace the bullet and store. We just store ours in a small zip lock bag.

This ring comes with 3 watch batteries already included in the packaging (which is nice). It also comes in a basic, clear plastic shell.

Slips off way too easily. I would rather go with a more expensive vibrating tongue ring than try to use this thing again. We have only used it a few times, but it's more frustrating and with all the "stop and go" action it doesn't really get us into the mood.