Size20Suction cup materialNitrile rubber NBRMaterial hardness [Shore A]55 Shore ANipple materialAluminumConnectionM5-MNumber of folds1.5Vacuum connectionM5-M KE-FSGA 20 NBR-55 M5-AGDesign Data Attribute Value d2 11 mm Dmax(S) 21 mm dn 2.50 mm Ds 18.10 mm G1 M5-M H 20.20 mm LG1 5 mm SW1 7 mm Z (Stroke) 5 mm