The Kershaw Chive Knives were designed by custom knife maker and innovator Ken Onion. The Kershaw Chives 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 Chive knives are available in a variety of finishes and handle materials. The Chive is the smallest out of the Leek and Scallion.