This M-A1052 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 4-inch, 3mm thick half-serrated stainless steel blade with blood groove and aluminum handle with USMC medallion. It includes a seat belt cutter and a glass breaker, ensuring that you are ready for any situation that might arise -- whether it be cutting or slicing something, rescuing someone from a car window or just opening your favorite beverage. Comes complete with a pocket clip for easy and safe carry. Measures 5 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.