This Challenge Xtreme professional socket tool set comes complete in a durable metal box. Its a combination of popular standard and metric 1/4; drive and 1/2; drive chrome vanadium sockets, 72 teeth quick-released ratchet handle and accessories. Socket set. Size H44.5, W19.2, D5.9cm. Accessories included: 14 x in Dr. Metric. Sockets:14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 27, 30 and 32mm. 2 x in Dr. Spark plug sockets: 16mm and 21mm. 2 x in Dr. Extension bars: 5in and 10in. 1 x in Dr. Universal joint. 1 x in Dr. Quick reversible ratchet handle. 1 x in Dr. Quick reversible ratchet handle. 1 x 3 way adaptor: in (M) x 3/8in (F). 12 x in Dr. Metric. Sockets: 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 11, 12 and 13mm. 6 x in Dr. Torx sockets: 4, 5, 6, 7, 8, 9 and 10mm. 18 x in Dr. Bit. Sockets: T8, 10, 15, 20, 25, 27, 30, 40; PH1, 2, 3; FD4, 5.5, 7; HW3, 4, 5 and 6. 1 x in Dr. Extension bar: 2in. 1 x in Dr. Spinner handle: 6in. 1 x in Dr. Sliding bar. 1 x in Dr. Universal joint. 1 x in Dr. Quick ratchet handle. 3 x hex key wrenches: 1.5, 2.0 and 2.5mm. Chrome/vanadium plated. Carry case included.