8 Rubber Bumpers for Trailer Ramp Door Truck 2.5" Round Replacement Cargo Stop 8 Premium Round Ramp Door Bumpers (screws not included) Approximately 2.5" round, 1" thick; Trailer Ramp Door Round Bumper Set Round rubber bumper offers extra protection from ground dings and scratches; Universal fit for many applications, 3/8" screw hole (screws not included) Easy, perfect fit with trouble-free installation; Heavy Duty Automotive Grade Rubber