Working Load Limit (WLL) is the max cargo weight Tie-Down can safely handle and accommodate forces caused by speed, road conditions, or emergencies. Industry standard for WLL is 1/3 the Break Strength Quality and Durability: Keeper 12 ft. Ratchet Tie-Down features an abrasion- and rot-resistant 1 in. Hi-Test webbing to absorb shock during transportation. Securing Features: Constructed with a steel ratchet, open molded handle and vinyl-coated double J hooks to prevent scratching and marring. How To Use: To engage, attach the hook to an anchor point, pull webbing over the cargo load and tug to desired tension. Ratchet by raising and lowering the handle to lock cargo into place. Ideal Use: Great for securing mid-sized cargo and equipment to your vehicle with a 1,000 lbs. working load limit. Before use, always be sure to confirm the size of the cargo before using this tie-down strap.