You've never used nipple clamps with such secure placement and precision fit like this. You'll notice immediately that they are Quality Made in Germany.

Three pointed grub screws on each ring can be screwed in to varying depths (and, if necessary, MUCH, MUCH DEEPER until it hurts). This ensures they stay securely in place and provide extra stimulation from soft to hard.

We recommend screwing Dr. Sado's Spiky Tit Rings on tightly, then using ice cubes to stimulate the nipples even more!

Naturally, the price includes one pair or tit rings. Pointed grub wrench included.

Thickness 8 mm (1/3“)
Inner diameter 15 mm (2/3“)
Outer diameter 30 mm (1 1/5“)
Material: Stainless steel