HEAVY DUTY PROTECTION: Compression?molded rubber in a rugged D?shape absorbs impact to guard vehicles and docks from damage in high?contact areas; 4 x 4 x 12 size with 2 holes delivers thick, reliable shock absorption that won’t rust or dent. EASY INSTALLATION: Pre?drilled mounting holes spaced 8?1/8" center?to?center speed setup on truck frames, trailer rears, or dock faces; consistent extruded dimensions ensure a flush fit and clean look using common hardware and standard brackets. HIGH IMPACT RESISTANCE: Durable rubber construction resists compression, abrasion, and repeated docking impacts, shielding bumpers, doors, and tailgates; engineered for demanding fleet operations and busy loading bays where contact is frequent. VERSATILE APPLICATIONS: Ideal for truck bumpers, van bumpers, dock bumpers, and trailer bumpers; a practical choice for warehouses, distribution centers, delivery fleets, and municipal operations needing dependable rear protection at elevated docks. LONG SERVICE LIFE: Solid rubber won’t chip, flake, corrode, or dent; extruded profile maintains shape under load; available in multiple sizes, thicknesses, and drill?hole configurations to match your specifications for replacements or new installs.