Manufactured from heat treated and hardened Chrome Vanadium steel with a fully polished finish. Keys range in length from 55 to 230mm. Contents: T6, T7, T8, T9, T10, T15, T20, T25, T27, T30, T40, T45, T50. Anti-slip coating for comfort and control. Supplied in easy-access case for safe storage and quick key selection.