This M-3002 series folding knife from U.S. Marines by MTech USA locks securely into place once open with the use of its liner lock. This knife features a 3.5-inch, 3mm thick straight edge stainless steel blade and G10 handle with CNC overlay. 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 everyday use, they're made from high quality materials and designed to be long lasting.