If you are looking to invest in a quality vibrating cock ring, this is not it. This is one time use disposable cock ring, and for the price of three of them, you can find something else that will give you a much better time. However, as a free gift, it's not too bad to have lying around in a pinch, I suppose.

This ring is made of TPR silicone which means that it is only compatible with water based lubricant. Right out of the package the ring is 1/2 inch in diameter but can be stretched up to 4 inches in diameter. Although the material of the ring is very stretchy, it is likely that it will break if one attempts to stretch it past its limits. The actual vibrating bullet is powered by a battery with a life of about 30 minutes. This battery is not replaceable. There is no way to adjust the strength of the vibrations and they are not very strong. If you are looking for a ring with powerful vibrations, look elsewhere.

For a free gift, this is fine. I wouldn't bother buying one though. I would even go as far as to say that this cock ring is more of a novelty gift than a toy that someone should use during sex. I would also like to emphasize that this is not what someone who has never used a cock ring before should expect from all cock rings. There are many, many better ones out there and the low quality of this ring should not put off anyone from trying rings.

I have heard some people say that they removed the bullet after the battery died and replaced it with there own. I suppose this could work, but due to the cheapness of the actual ring, I would suggest just buying a better cock ring and throwing this one in the trash after you have used it.

I did not like this ring very much, but it is not bad to receive as a free gift. However, if I have a choice between this and some of Eden's other free gifts, this is not my first choice to receive.