This is a Durabilt Ratcheting Turnbuckle it has a 1-3/8" Screw 10" take up and 24" handle. This unit was made for the military the WLL is not marked on the unit. The hook is marked 3/4 we assume it is for 3/4" chain the opening in the hook is 1" x 4". The loop is made from 1" diameter steel it is 8-3/4" long by 5-1/2" at the widest end. The is missing one of it's grease ports it is broken off.