These clamps are some of the most intense ones on the market. They require a warm up almost every time they are used, but the payoff is an intense, centering, pain. Because the sensation is so strong, I wouldn't recommend them to beginners, unless they are feeling very industrious. Using these on the nipples are amazing, but they're great for other parts of the breast, or to clamp one end to flesh and the other to a hard point or wrist cuff. The best part is that they're very difficult to pull off because the harder they are pulled, the tighter they squeeze!

These clamps are made of metal, making them durable and easy to clean. The cold metal clamps and chain make for chilling sensation play. The contacts are a little more forgiving; they're a hard, nubbed plastic that really gets a grip and stays that way.

The design is pretty standard for these clamps, and easy to use with just a squeeze at the sides. The only downside was the chain that connected them. I found it too short to do much more than hold them together instead of more creative things like clipping to a post. These are only adjustable by adding weight to the clamp bottoms. Basically, it starts at 9 and only goes up!

If your nipples are larger you might find this too tight a fit, but maybe that's what you want.

These clamps open and close with a simple squeeze at the sides, but otherwise don't really move. Because they're metal, they're great for transferring vibrations, though. Overall, these worked really well, and will be used again.

These are very easy to care for, and even come with their own plastic bag for keeping them in. A simple wash with soap and water will do to keep these clean. If you ever find the springs or joints sticking (not likely, unless you let it sit wet for a while), some oil will do. Make sure it's play safe!

The toy came packaged with its own plastic bag, and nothing else. For someone who has never used a pair of these before, it might be a little confusing to open the clamps, but after that, it's really straightforward.