These clamps are definitely better suited for an advanced user of nipple clamps. I would not recommend them unless you have previously tried something less harsh, such as the tweezer style clamps. That being said, these are perfect for anyone who wants something that clamps on tighter and won't fall off. I personally think these are too harsh to be used on other parts of the body, so I only used them on my nipples.

These are made almost entirely out of metal, with the exception to the grip, which is made out of rubber. The metal is thin, but sturdy, and seems as if it will hold up for a very long time. The rubber grips are good quality and are held in place by two little prongs on the sides. There is also a thin cord which is most likely made of polyester which is also of good quality. The metal is very smooth and shiny and has no smell to it. They are very lightweight.

These are considered Japanese clover clamps, you can see the clover shape at the base where the string attaches. I think these clamps were designed very well. They are easy to press open, making them easy to put on and take off. The little teeth on the rubber grip enable them to stay on even when pulled on, which is a definite plus because many other clamps fall off easily. They will work for any sized nipple, but are not adjustable. For those who want a little something extra, the strings can be pulled on, or you could add small weights to them. With weights added, the clamps will tighten more. These clamps do hurt quite a bit, especially the first time you use them, therefore I think they are better suited to more experienced nipple clamp users. If you remove them quickly it will hurt a lot, so I would recommend removing them slowly, and definitely by squeezing them, not by trying to yank them off.

I store these in a zippered pouch with other metal toys. They can be wiped clean with an antibacterial wipe, just ensure that they are completely dry before storing them.

The packaging was just a piece of cardboard with a piece of plastic holding the clamps to it. It did contain nudity and was not discreet at all.