Vacuum Cups and Suction Cups Single Bellow Suction Cups For Paper Handling Part Number and Material Dia. in. (mm) Hole Dia. in. (mm) Height in. (mm) Bottom Surface Material Item Weight oz. (grams) SUBB41NR (Natural Rubber) 1.61 (41) 0.31 (8) 0.87 (22) Cleated Natural Rubber 0.106 (3)