The Kershaw Leek Knives were designed by custom knife maker and innovator Ken Onion. The Kershaw Leeks have the patented Ken Onion Speed-Safe assisted opening mechanism. Speed-Safe is a torsion bar system that assists the blade to an open position, when activated by a push on the thumb stud, or the Index-Open blade extension.
The Kershaw Leek knives are available with stainless steel handles or aluminum handles. The stainless steel handled Leek knives include: Leek with original matte finish in plain or part serrated edge, Black Leek with all over tungsten DLC coat in plain or part serrated edge, and Rainbow Leek with all over rainbow Titanium Oxide coat. No two Rainbow Leeks are exactly alike. The aluminum handled Leek knives have anodized scales in smoked Black and Blue, smoked Black and Red, or Pink.