The TR-4 incorporates a sliding safety on the front of the handle. This TR-4 features a 4" black DLC finished 154CM steel blade with a plain edge. The handle is black anodized T6 aluminum. This large folder fires hard, locks up tight and feels great with the very ergonomic handle. The TR-4 has a pocket clip (tip up only) on the back of the knife. Also includes a black nylon sheath.