Made of plated Chrome Molybdenum industrial drop forged, heat treated 45 steel. Comes in a plastic blow molded case Includes: (1) Reversible ratchet , (1) Flexible bar: 20, (2) Extension bars: 4 and 8, and (16) Sockets 3/4 Drive: 7/8, 15/16, 1, 1-1/16, 1-1/8, 1-3/16, 1-1/4, 1-5/16, 1-3/8, 1-7/16, 1-1/2, 1-5/8, 1-3/4, 1-13/16, 1-7/8 and 2. Net weight: 29 lbs.