Being a newbie to cock rings, I got the TitanMen stretch-to-fit ring to try simply because I was a bit paranoid about getting stuck in a ring. This one will stretch quite a bit. I found this one very easy to use, and being average sized, it fits me well.

It's labelled as being made out of TPR. Overall the finish is fairly smooth. There is a small seam line all around the middle of the ring, plus a seam across it where they join it together. The seams are small enough that I could not feel them when worn. It's very flexible, and can be stretched easily to fit around the cock and balls. It does not slide on the skin by itself, so a bit of lube is best used to help with placement. The TPR material does pickup dust and lint easily.

It's a fairly large ring compared to the 2 others I have tried. Inside measures out to be 1 1/16", outer is 1 1/2" with a thickness of 1/4". It will stretch to be several times its size. I've had stretched to be as much as 4+ inches. It is quite wide; it measures in at 5/8". Personally, after using it a few times, I wish it was about 1/2 that wide, say 1/4-3/8". Being so stretchy, it is pretty easy to put on and take off. It will not slide on bare skin, so I highly recommend some lube to help with final placement. It does its best to return to normal size when worn, so it does provide a snug fit. For the average guy like me, it fit well, and was not uncomfortable. If you're well equipped, it might be a bit too tight.

Functionally, it does what it's supposed to do. Put it on, and see how it enhances your erection! Overall it added a bit of size, firmness, and the ability to last longer for me, which increased my pleasure using it. I love it when products work as advertised!

Can easily be washed with toy cleaner or antibacterial soap. It does tend to pickup dust and lint, so I store mine in a Ziploc. Then, give it a quick rinse at the faucet, and off we go!

This is a nice cock ring -- especially for us newbies. Easy to put on, and take off. It works as advertised! My only wish is that it was not as wide. It could easily be 1/2 the width and still produce the desired results.

It works! I've tried it both just on the cock, and around the cock and balls. Either way, for me, gave a bit more size (for me, mostly my cock head seemed larger), veins were more pronounced, firmer, and it gave me better stamina. That all adds up to more pleasure for her, and more for me!