Matt black finished chrome vanadium. Includes: 12 x 3/8" drive sockets: metric: 8, 9, 10, 11, 12, 13, 15 and 17mm: imperial: 3/8", 1/2", 9/16" and 11/16". 20 x 1/2" drive sockets: metric: 9, 10, 11, 12, 13, 14, 15, 17, 19, 21, 22, 24, 27 and 30mm: imperial: 9/16", 5/8", 11/16", 3/4", 13/16" and 1". 2 x extension bars: 1/2" x 3" and 3/8" x 3". 1 x drive adaptor: 1/2"-3/8".