12-Piece 3/8" hex sockets 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 and 22 mm.One 3/8" ratchet: quick release, 60 teeth/6° action angle.Two 3/8" extension bars, 75 mm/3" and 150 mm/6".One 3/8" universal joint.One 3/8" x 1/4" bit holder.Two 3/8" spark plug hex sockets, 16 mm (5/8") and 21 mm (13/16").One 1/4" spinner with two-component handle.One 1/4" x 1/4" bit holder.Three 1/4" slotted bits: 4, 5.5 and 7 mm.Four 1/4" Phillips bits, PH1, PH2, PH3 and PH4.Six 1/4" hex bits, 3, 4, 5, 6, 7 and 8 mm.Matte finish.High-performance alloy steel.Less wear and damage to fastener thanks to Dynamic-Drive™ profile sockets.Quick socket release button on ratchet.Case: High density polythene (HDPE).Standards: ISO 1174 and DIN 3120