The Monster Swivel Hook is the only shackle replacement hook in the world! It’s 99% faster than a normal 3/4" pin shackle with equal strength. It’s 100% American made 6061 Aircraft Grade Aluminum.
It allows you to simply latch on your tow strap on the hook in a split second rather than taking the time to unscrew a shackle. Originally designed to help bogged US military vehicles where time is crucial in saving lives.