Nipple clamps made of soft silicone with O-rings. The bell-shaped suction will lay out your nipples. The smooth material is squeezable. At disengage it produce a vacuum and suck on your skin. They are in position you can attach weights or leashes on the rings.
Length: approx. 4 cm
Diameter: approx. 2.5 cm
Material: 100% Silicone, Metal