Mint craft 20 Piece Metric Socket Set. The sockets are made with chrome vanadium steel with a polished finish. Sockets are 3/8″ drive. Set includes seven 3/8″ drive (10mm, 11mm, 13mm, 14mm, 15mm, 17mm, 19mm), four 46mm deep drive (10mm, 11mm, 13mm, 14mm), four 63mm deep drive (16mm, 17mm, 19mm, 22mm), 3″ extension bar, universal joint, 8″ quick release ratchet handle, 8-1/2″ flexible handle and blow case. The case is made of a durable plastic.