Size7Suction cup materialSilicone SIMaterial hardness [Shore A]55 Shore AMaterial characteristicsFDA-compatibleNipple materialAluminumConnectionG1/8"-MNumber of folds2.5Vacuum connectionG1/8"-MKE-FSG 7 SI-55 G1/8-AGDesign Data Attribute Value d2 1.80 mm dn 3.50 mm Dmax(S) 7 mm Ds 5.90 mm G1 G1/8"-M H 20 mm LG1 7.50 mm SW1 14 mm Z (Stroke) 3 mm