ANVER Vacuum Cups and Suction CupsModel: Flat A-F30-P60Part Number: A-F30-P60 ANVER and P-Series Description and Part No. Connection Thread Size Static Diameter * Static Height * Load Capacity* at 24 in. Hg (609.6mm Hg)[2:1 Safety Factor] Pull-Off Capacity at 27 in. Hg (685.8mm Hg)[1:1 Safety Factor] Level Compensator Suspensions (Click Image for More Info) A-F30-P60(Thermo-elastic Polyurethane) N/A 1.25 in. (31.6 mm) 0.40 in. (10.0 mm`) 3.1 lbs (1.4 Kg) 7.0 lbs (3.18 Kg)