Manufactured from heat treated and hardened Chrome Vanadium steel with a fully polished finish. Keys range in length from 90.5 to 231mm. Contents: 1.5, 2, 2.5, 3, 4, 5, 5.5, 6, 7, 8, 10mm. Anti-slip coating for comfort and control. Supplied in easy-access case for safe storage and quick key selection. SEALEY PREMIER - One of a comprehensive range of Premier Hand Tools, suitable for daily professional use. HEAT TREATED CHROME VANADIUM STEEL Hardened for strength and durability. RANGE OF KEY LENGTH AND SIZES Keys range in length from 90.5 to 231mm. ANTI-SLIP COATING Gives greater control and comfort in application. EXTRA-LONG For increased access in space limited applications. BALL-END Allows key to drive fixing at up to 30. 11 PC SET Contents: 1.5, 2, 2.5, 3, 4, 5, 5.5, 6, 7, 8, 10mm. SUPPLIED IN STORAGE CASE For easy access and quick key selection. LIFETIME GUARANTEE*.