LANKYZ liquid silicone nipsuckers suck the part you want sucked the most, your nip-nub the tip that part that has all the shivery throbby nerves. LANKYZ sucks that part most and has room to suck so deep. The suck-hole is about the size of a dime, so it fits over your nip but not the surrounding skin, with a flat rim that gives the best seal and longest sucking. Plus, it has massive depth: almost three inches! LANKYZ, for short play - enhance the nip-sensations. For nip-gainers seeking max length the inner tunnel flares wider as it gets deeper for more airspace around the nip. More Suction - More Pressure - More Pull. These are made of the best liquid silicone, it is the best stuff and the suckers have a glossy lush look and feel. Outer rimmer-rings along the length add to the suction but keep the walls thin with grippy nubblets at the tip for a bit of grip. Made of glossy lush feel silicone Designed to suck the part of the nip you want sucked most Quick nip-play or for long-term length gainers Measurements: Width: 1.25/32 mm Length: 2.75/71 mm Depth: 2.7/68 mm Outside diameter max: 1.25/32 mm Outside diameter min: 1/25 mm Outside circumference max: 4.25/108 mm Outside circumference min: 3.5/89 mm Inside circumference: 2/51 mm