There are 2 cups for each size. 0.625, 1, 1.25, 1.625, 2 and 2.25 inches Simple put on the skin and attach the handle pump and pull the trigger pump to remove the air and watch the skin rise into the cup. The pump can be removed and the cups will remain in place

Washing: Hot soapy water and toy cleaner
Colour: Clear
Flexibility: Firm
For Who: Both
Material: Plastic
Brand: Kink Industries