Damage can result when metal bumpers make contact with walls, doors, other carts, and machinery. U-Truck Bumpers can prevent this damage from occurring. The extruded rubber design attaches to the existing nutting truck metal bumpers, cushioning and reducing damage to equipment on the workroom floor. Bumpers fit securely and do not slip off. Bumper size: 10" wide x 1.75" deep x 3" high. Features 4 lbs. density polyethylene materials. Ships USPS. Some effort required to install.