Sealey AK7191 9 Piece Colour Coded Ball End Hexagon Key Set 1.5-10mmManufactured from hardened and heat treated Chrome Vanadium steel with a fully polished finish.Keys range in length from 90mm to 230mm and in size from 1.5mm to 10mm.Colour-coded rubber coating for comfort, control and fast identification.Supplied in easy-access case for safe storage and quick key selection.