This MX-A801GY Flipper -assisted opening  folding knife from MTech USA Xtreme offers easy one-handed deployment. Once open, the blade locks securely into place with the use of its liner lock. This knife features a 3.5-inch, 3mm thick two-tone half-serrated stainless steel blade, and a black and gray handle. Comes complete with a pocket clip for easy and safe carry. Measures 4.75 inches closed. MTech USA Xtreme offers a variety of both tactical fixed blade and folding knives that are made with thicker and higher-grade materials such as 440A and 440C stainless steel blades.