Description: These bump guards are used on the trailer ramp to avoid the door or gate from hitting the ground during loading and uninstalling. Made of good rubber, they're soft, pliable, sturdy and elastic to provide adequate cushioning for a long time. Easy to install with screws. Specification: Condition: New Material: Rubber Color: Black Outer Diameter: 53.5mm/2.11" Inner Diameter: 28.5mm/1.12" Screw Hole Diameter: 10mm/0.39" Thickness: 26mm/1.02" Size: 26×53.5mm/1.02“×2.11”(H*D) Package Included: 2pcs Trailer Ramp Door Bumpers Bump Guard