ANVER Vacuum Cups and Suction Cups Model: Universal Flat Series Part Number: F40-SIT Vacuum Cup Part Number and Material D Flared Overall Dia. in. (mm) d Fitting Dia. in. (mm) H Static Height in. (mm) A Compressed Height in. (mm) Volume in. (cm) Load Capacity* 2 to 1 Fitting Group (Click Image for More Info) Suspensions Group (Click Image for More Info) F40-SIT (Translucent Silicone) 1.56 (39.6) 0.31 (7.8) 0.79 (20.0) 0.63 (16.0) 0.250 (4.00) 4.6 lbs (2.1 Kg)