Two cute little bells on a standard tweezer-style nipple clamp. The tweezer clamp comes with vinyl-coated ends and a sliding ring to adjust the tightness anywhere from just enough to hold them on all the way up to a really severe pinch. They stay on and are easy to use. The bell is a light weight metal and has a very soft sound. Can be used on the scrotum, nipples or penis. Great for humiliation play, also can help tops locate subs quickly.