Feature:Professionally heat treated for strength and durability.Professional repair tools aim to giving assistance during devices repairing.Solid surface and clear instruction,reliability with industry standards.Made from chrome vanadium,mirror polished for a fine finish,durable and long term use.Chrome vanadium steel forging,gears and jaw hardening heat treatment,hard wear-resistant.Specification:Color: SilverMaterial: SteelSize：6mm/ 7mm/ 8mm/ 9mm/ 10mm/ 11mm/ 12mm/ 13mm/ 14mm/ 15mm/ 16mm/ 17mm/ 18mm/ 19mm/ 20mm/ 21mm/ 23mm/ 24mm/ 25mm/ 26mm/ 27mm/ 28mm/ 29mm/ 30mm/ 32mmPackage included:1 x Spanner