Color band denotes SAE/Metric measurement for easy identification. Textured bands offer improved grip. Chrome vanadium steel. Lifetime warranty. Includes fully polished 3/8″ drive 8″ quick release ratchet, 1/4″ drive spinner handle, 1/4″ bit coupler, 3″ and 6″ 3/8″ extensions, 5/8″ and 13/16″ spark plug sockets, 3/8″ to 1/4″ adapter, 1/4″ drive 6-point sockets in sizes: 3/16″, 7/32″, 1/4″, 9/32″, 5/16″, 11/32″, 3/8″, 7/16″, 1/2″, 4.5 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm; 3/8″ drive 12-point sockets in sizes: 3/8″, 7/16″, 1/2″, 9/16″, 5/8″, 11/16″, 3/4″, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 17 mm, 19 mm; bits with holder – #1, #2, #3, 1/8″, 3/16″, 1/4″, SQ1, SQ2, T10, T15, T20, T25, 3/16″ hex, 1/4″ hex, 5/16″ hex, 3/8″ hex, 5 mm hex, 6 mm hex, 8 mm hex, 10 mm hex. Packed in a plastic case.