My biggest suggestion with this product is to measure yourself, check out the measurements of the toy, and think about how tight you're willing to go in a cock ring. Sure, it's made with stretchy TPR silicone, but the opening is pretty small. Although it says it stretches to 3" in diameter, it takes a decent amount of force to get it stretched that much.

Upon putting it on, my boyfriend was in a lot of pain. The material would drag against his skin with a lot of friction since it's TPR silicone after all, and he was clearly in a ton of pain from that. Once it was on, his penis went numb within seconds and he said it was incredibly too tight. Taking it off was even more painful than putting it on.

I thought this TPR silicone cock ring would be a nice one, but I believe it's not really for beginners. Rather, it is for experienced cock ring users who are willing to go "tight". I am going to try stretching the band and I will update if I get anywhere with it -- but I'm not sure if I will be successful.

Other than that, the toy's size is quite large and the vibrations are really powerful. Keep in mind that it is probably bigger than what you're expecting. Each end is about the same length, and it really is long enough to reach and tickle your butt. The vibrations seemed much more powerful than the Eden Fantasys jelly cock ring (I use this for comparison since it is the only other one my boyfriend and I have used). I am sad that the Propello didn't work out for my boyfriend, though it did seem like it would be extremely pleasurable for me!

Also, this is a reusable cock ring. Its vibrating bullets take watch batteries, which at first I thought would be a pain, but they come loaded with some AND included extras. The cock ring can be washed with soap and water, but the bullets must be removed from the "arms" before cleaning.