Chrome vanadium steel, correctly hardened and tempered for added strength. Each polished spanner is chrome plated providing a protective coating and Supplied in a Teflon pouch.Generally in accordance with DIN3113 SpecificationsFeatures & Benefits:• Contents: 8, 9, 10, 11, 12, 13, 14, 17, 19, 22, 24, 27, 30 and 32mm• Chrome vanadium steel, correctly hardened and tempered for added strength• Each polished spanner is chrome plated providing a protective coating• Supplied in a Teflon pouchContents:14 x Spanners: 8, 9, 10, 11, 12, 13, 14, 17, 19, 22, 24, 27, 30, 32mm