California Knives' Carbon Fiber Auto's easy, automatic, one-handed operation makes it a handy tool for daily pocket carry or kept in a waist-pouch, backpack, tool or glove box. The blade is composed of 154CM stainless steel treated to a 58-60 Rockwell hardness and can be custom imprinted with a logo or personal inscription. The opening mechanism employs a fully supported through-the-blade, nine-coil spring. The durable carbon fiber handle has a dull chrome finish on the zinc trigger.