Love these viscous things!.
Stingy, pinchy heaven for my nipples, I can't get enough.
Probably too intense for beginners, but great for those of us who love nipple torture.
Not for the faint hearted.
Awesome clamps! They're grunty thought, so if you've not used nipple clamps before I'd start with something a bit more subdued :P I'm so happy I got them however.