The Kershaw Ken Onion Leek is one of the sleekest assisted opening knives around. This 1660BLKW model features Kershaw's BlackWash finished 14C28N stainless blade (plain edge) and 410 stainless steel framelock handle. The Leek features Kershaw's patented SpeedSafe technology. Give the ambidextrous thumb-stud a push and the knife takes over opening the blade the rest of the way. This is an ideal one-handed opener. Other features include frame lock design, reversible stainless pocket clip, and a tip safety lock so the blade won't fire by accident.