Vestil V-1124-4.5 Rubber Dock Bumper, Rectangular, Laminated, Vertical Mount, 6 Holes, 24" Length, 11" Width, 4.5" Depth Vertical loading dock bumper for preventing damage by a vehicle to dock or building 4-1/2" rubber padding for elasticity and resistance to impact Fabric-reinforced for strength and dimensional stability Steel mounting and tie rods for strength and durability Welds to dock or bolts to dock for easy installation