Manufactured from heat treated and hardened Chrome Vanadium steel with a fully polished finish. Ball-end hex from 1.5 to 10mm with hex short element and TRX-Star* from T10 to T50 with security short element. Keys range in length from 75mm to 180mm and feature an anti-slip coating for comfort and control. Supplied in composite case for safe storage and quick key selection.18pc Anti-Slip Long TRX-Star* & Ball-End Hex Key Set• Manufactured from heat treated and hardened Chrome Vanadium steel with a fully polished finish.• Ball-end hex from 1.5-10mm with hex short element and TRX-Star* from T10 to T50 with security short element.• Keys range in length from 75-180mm and feature an anti-slip coating for comfort and control.• Supplied in composite case for safe storage and quick key selection.• Lifetime guarantee*.• Model No. AK7176Model No: AK7176:Brand: Premier:Contents: Ball-End Hex (Hex Short Element); 1.5PTDSEAAK7176