Draper 3/8" Sq. Dr. Metric Socket Set (18 Piece)Six point sockets made from chrome vanadium steel that's hardened and tempered with a satin finish. Supplied with a 72 tooth reversible soft grip ratchet and accessories. Packed in a plastic storage case. Contents: 14 x Metric sockets: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22mm 72 x Tooth reversible ratchet with soft grip handle and "quick release" button 2 x Extension bars: 75, 150mm 1 x Universal joint Manufactured and tested generally