Vacuum Cups and Suction CupsANVERFLEX Large Oval Pad Attachments PAOC56-177-S-3 Pad Attachment Part No. Cup No. A in. (mm) B in. (mm) C in. (mm) *Rated Load (Horizontal) lb(kg) PAOC56-177-S-3 OC56-177 18.00 (457) 5.88 (149) 3.25 (83) 400 (180) * Rated Load Capacities are estimated; actual capacity will vary based on the load surface and the level of vacuum.