Specifications:Closed end: 11, 10, 9, 8, 7, 6, 6, 5.5, 4.5, 4mmOpen end: 10, 9, 8, 7, 6, 5.5, 5, 5, 4, 4.5mmMaterial: CRVPackage Size: 10 * 8 * 1cm / 4 * 3.3 * 0.3inPackage Weight: 122g / 4.3oz Features:Novel design, exquisity outlook, high quality and durable10 pcs a set,covers a wide range of applicationMade of Chrome Vanadium Steel with mirror finish, corrosion-resistantCompact size for easy access in confined spacesComplete set for automotive, industry, home use and more