16pc 1/2"Dr. Socket Set is made of carbon steel, is packed in blow mold case 16pc 1/2"Dr. Socket SetMaterial: carbon steelContains:1pc-1/2DR.Reversible Ratchet Handle 1pc-1/2DR.Universal Joint 1pc-1/2DR.Extension Bar: 10 1pc-Sliding Bar: 240MM 11pc-1/2DR.Metric Sockets: 8,9,10,11,12,13,14,15,17,19,22MM 1pc-Blow Mold Case 16pc 1/2"Dr. Carbon Steel Socket Wrench Set