Kershaw Knives manufactures a wide selection of utility, sporting, and military knives. Using only the best materials, they pride themselves on functionality, quality, and value. Every Kershaw knife provides a lifetime of performance and be there when you need it. Kershaw knives are among the most popular and innovative in the industry. Legendary for arriving "shaving sharp," Kershaw products are respected worldwide. Ken Onion Products Kershaw offers a variety of folding knives featuring Ken Onion's patent pending "Speed Safe" mechanism incorporating torsion bar technology for assisted opening. These open at an accelerated rate once started. They are not considered "automatic openers" and are legal in most jurisdictions.