Bahco S160 Socket set 1/4in square drive with dynamic drive profile. Finish: matt chrome-plated, Material: chrome vanadium. Plastic case: oil and temperature resistant polypropylene. Contents: 16-pieces: 12 x 1/4in 6-point dynamic drive sockets 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 11, 12 and 13mm. 1 x 1/4in ratchet handle 45-teeth. 1 x 1/4in sliding T-bar 4in. 1 x 1/4in extension bar 3in. 1 x 1/4in flexible extension bar 6in.