Made from forged alloy steel, this 18-piece set is heat treated and tempered, nickel chrome plated and polished. Set includes 12-point standard and deep sockets, 3/8", 7/16", 1/2", 9/16",5/8", 11/16", 3/4", a 5/8" spark plug socket, 3" and 6" extensions, 3/8" drive ratchet handle, and a metal storage box. Lifetime warranty. Weight: 5.5 lbs.