These frame protectors minimize the impact of the trailer engine, including forklifts and pallet trucks, to prevent frame damage and potential spillage of contents. The end-mount design protects outside corners in high-traffic areas such as warehouses and distribution centers. The EVA polyethylene construction air chamber is designed to deflect impact away from the frame to improve structural integrity. The high-visibility yellow finish is useful in low-light environments for personnel safety. Dual Velcro closures install and remove easily for user convenience. The protectors are compatible with racks of all brands with a 75 mm 3W vertical face. Includes a stackable design to increase overall strength.