Coast Products DX356 knives are sharp and safe--double safe! Featuring Double-Lock technology, the DX356 knives are equipped with Liner-Lock that automatically engages and locks the blade open—but when extremely rugged cutting is anticipated, you can push the Double-Lock switch forward. When in the forward position, the switch blocks the Liner-Lock from disengaging, thereby preventing the blade from closing on your hand. And the safety detent-action is adjustable to your desired tension. Coast DX356s come with a textured G10 polysteel handle and thumb notches on top of the blade for a secure grip, as well as thumb studs on each side for easier one-handed opening, and a deep-carry pocket clip. They're backed by Coast Products lifetime warranty against defects in materials and workmanship.