This pulley is designed to be used in rescue work or hauling as a means of gaining mechanical advantage. Features two large carabiner rigging points on wide skirted side plates of red anodized aircraft aluminum. Glass-filled, silicone impregnated celcon sheave. Dimensions 4.5 x 3 with a sheave diameter of 2.375. The Sheave rides on a hardened axle which has been ground for maximum durability.