BlackLine 4" x 30' Ratchet Strap with Wire Hooks4" x 30' Blackline Heavy Duty Tie Down Strap with Double J Hook These 4" Blackline heavy duty ratchet straps are built to outperform standard straps in strength and durability. Made from industrial strength polyester webbing with a 24,000 lb. break strength and a 6,670 lb. working load limit, they are 23. 5% stronger than typical 4" straps. The webbing is designed for superior abrasion resistance, featuring a reinforced edge made from concentrated