Columbia River Knife & Tool KALBI BLUE, Folding Knife, Satin Finish, 3.28 Blade Length, Blue Aluminum Handle, Acuto 440 Blade Steel, Liner Lock 7540 A member of the Crossbones family" the Kalbi is a versatile everyday carry knife that's been upgraded with Japanese Acuto 440 blade steel for improved edge retention. The practical elegant design of the Crossbones returns" now with an un-missable blue aluminum handle that sets this knife apart as something special.