Manufactured from heat treated and hardened Chrome Vanadium steel.Keys range in length from 76 to 258mm and in size from 2 to 19mm.Colour-coded anti-slip coating for comfort, control and fast identification.Jumbo sizes ideal for large plant machinery and heavy-duty applications. Contents: 2, 2.5, 3, 4, 5, 6, 7, 8, 10, 12, 14, 17, 19mm. Supplied in easy-access case for safe storage and quick key selection.Lifetime guarantee*.Model No. AK7192SEALEY 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 76 to 258mm and in size from 2 to 19mm.COLOUR-CODED – Powder coated colour-coded finish lends for easy recognition of individual sizes. ANTI-SLIP COATING – Gives greater control and comfort in application. 13PC SET - Sizes: 2, 2.5, 3, 4, 5, 6, 7, 8, 10, 12, 14, 17, 19mm.JUMBO SIZES – Ideal for large plant machinery and heavy-duty applications. SUPPLIED IN STORAGE CASE – For easy access and quick key selection. LIFETIME GUARANTEE*.