There isn't much to say about O-rings really. They are metal and can be used for harness use or as cock rings|Penis rings (please don't try this if you haven't used a cock ring|Non-vibrating penis ring to experiment with before, instead start with something that is easy to get off in case you need to). The three rings come in either gold or silver color (mine are silver). The smallest is tiny measuring 1 1/4 inches in diameter, the middle size is 1 1/2 inch, and the largest of the three is 2 inches.

I bought these primarily for use with my harness, and they work as well as any metal O-rings would. I must mention that these are not endless circles. I have not noticed this causing a problem in anyway, but more expensive O-rings would not have this flaw. These are cheap enough though, that I can't complain. When using these for holding dildos in a harness, remember that you'll need an O-ring|3 piece ring set that is slightly larger than the dildo you plan on using it for.

My husband has used the 2 inch ring as a cock ring, and it was his first experience with something metal. He has used stretchy rings and snapping cock straps, and was pretty comfortable with the idea before he used the metal one. I really wouldn't suggest trying to use any of the smaller rings for cock rings because they really are too small for the average sized penis. My husband wears the ring as cock rings are traditionally meant to be worn, that is over cock AND balls. This MUST be done when flaccid or mostly flaccid. Don't even attempt to put this on an erect penis, trust me, it won't go on. How you put this on, is carefully put one testicle through the ring then ease the other one through as well. Once your balls are in place, you gently push your flaccid (limp) penis through the ring as well. Don't keep a cock ring on for more than 20 minutes at a time so you don't risk permanently injuring yourself.

My husband found the ring to be comfortable, and did not notice the seam at all while the ring was in use. The metal is sexy looking, and this would be a good cheap alternative to some of the higher end cock rings just to see if metal is something you are into. My husband’s girth is an average size of 1 1/2 inches and he found the tightness to be just right. It wasn't so tight as to be uncomfortable, but it was still tight enough to provide a harder erection.

Over all, I would have to say that these rings are worth it whether you want them for harness use or cock jewelry|Titan brushed - Steel cock ring. Maybe you’re like my husband and just wanted to make sure metal was really something worth investing in before going out and buying a Gear Essentials cock ring|Celtic engraved cock ring - Gear Essentials. Either way, the price on these is nice, and we’ve been very pleased with ours. If I ever notice any wear and tear, I will post in a follow up review.