4"x30' Ratchet Strap Tie Down Double J Hooks4 in. x 30 ft. Ratchet Strap w Double J Hooks Our 4 in. 30 ft. ratchet strap with double J hook is made of polyester yarn, the webbing breaking strength is up to 24,000 lb., while the assembly, which we call it ratchet strap, only has 20,000 lb. breaking strength, this is mostly due to the hardware, especially the double J hook, also called wire hook, only has 20,000 lb. breaking strength. The polyester webbing is ideal tie downs for applications