Manufactured from dense polyester web, this Heavy Duty Trailer Strap has the same 3,670 lb. working load limit of nylon, but is thinner, won't stretch as much, and will stand up better to moisture and acid. Featuring two forged Swivel J Hooks, tire grippers, and a protective sleeve to prevent wear and tear, this strap will firmly secure vehicles on auto haulers, while the tire grippers will keep the harness straps from slipping on the wheels. Web assemblies should be stored in a cool, dry, dark place and cleaned with plain water only, never machine washed.