Through fine polished and plating bright chrome, rust and beautiful, 72 tooth drive technology, rotating 5 degrees can drive, facilitate to use in small space. Features: Made from chrome vanadium, mirror polished for a fine finish, practical and long term use. 72 teeth ratchet ring, small head profile, high torque capacity. Professionally heat treated for strength and practability. Chrome vanadium steel forging, gears and jaw hardening heat treatment, hard wear-resistant. Through fine polished and plating bright chrome, rust and beautiful. 72 tooth drive technology, rotating 5 degrees can drive, facilitate to use in small space. Specifications: Size: 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 27mm, 30mm, 32mm (optional) Material: chrome vanadium steel Color: silver 6mm 7mm 8mm 9mm 10mm 11mm 12mm 13mm 14mm 15mm 16mm 17mm 18mm 19mm 20mm 21mm 22mm 23mm 24mm 25mm 27mm 30mm 32mm Item length(cm) 12.5 12.5 14.8 15.8 15.8 16.3 17.7 17.7 19.6 19.6 21.2 21.2 23.3 23.3 23.3 25.1 25.7 27.7 27.7 27.7 33 35 39 Item weight(g) 39 39 45 68 65 70 104 104 146 140 185 180 228 224 221 353 350 440 455 400 600 750 890 Package size(cm) 13 * 5 * 3 13 * 5 * 3 15 * 5 * 3 16 * 5 * 3 16 * 5 * 3 17 * 5 * 3 18 * 5 * 3 18 * 5 * 3 20 *7 * 5 20 * 7 * 5 22 * 7 * 5 22 * 7 * 5 24 * 7 * 5 24 * 7 * 5 24 * 7 * 5 26 * 7 * 5 26 * 7 * 5 28 * 7 * 5 28 * 7 * 5 28 * 7 * 5 34 * 7 * 5 26 * 7 * 5 40 * 7 * 5 Package weight(g) 45 45 50 72 70 75 110 110 150 145 190 185 232 230 225 360 355 445 460 405 605 755 895 Package list: 1 * Wrench