Etrading Military Army Grenade M26A1 Look Pocket Knife Spring Assisted Opening Folder GY Overall Length: 6.25 ", Blade Length: 2.75 " The blade is 3CR13 Steel with a single edge. It can be used as bottle opener. Pulling the grenade pin releases the assisted opening blade. The blade is secured by a steel liner lock. The handle of the knife is steel in the likeness of a M26A1 grenade.