This knife carries a powerful spring automatic opening (just push on the button). It comes perfect with a center ridge line on both sides of the blade. The blade is 440 satin finish stainless steel blade. The body is fully metal and carries the firing button on the side for easy carrying. This OTF Double Action Auto Knife carries a strong grip on the Belly and Spine of the handle. This baby comes equipped with a pocket clip on the bottom of the Handle and an emergency glass breaker. Overall Length: 8.5 inch