Used to gain a mechanical advantage over the load being moved. Forged hook and yokes, heavy side plates, grease zerks, and hook latches are all standard equipment. Easy opening side plates open without coming apart for easy cable insertion. If you need a great quality block with a budget price... this is the block for you. Type: Hook Sheave Diameter: 4 1/2" Wire Rope Size: 3/8" x 1/2" W.L.L.: 8,000 lbs Weight: 13.0 lbs