This M-A1056 series spring assisted open folding knife from U.S. Marines by MTech USA offers easy one handed deployment. Once open, the blade locks securely into place with the use of its liner lock. This knife features a 3.7-inch, 3.5mm thick straight edge stainless steel blade. Comes complete with a pocket clip for easy and safe carry. Measures 4.7 inches closed. The U.S. Marines by MTech USA line offers action assist knives, folding knives and fixed blade knives -- all perfect for survival or combat situations. Ideal for for everyday use, they're made from high quality materials and designed to be long lasting.