Size8Suction cup materialNitrile rubber NBRMaterial hardness [Shore A]55 Shore AVacuum connectionM5-MKE-SUF 8 NBR-55 M5-AGDesign Data Attribute Value Dmax(S) 8.40 mm Ds 8 mm dn 1.80 mm G1 M5-M H 10.50 mm LG1 4.70 mm SW1 8 mm Z (Stroke) 0.80 mm