Barnett Evac Crossbow De-Activation Bolts -By simply placing the bolt in the flight track, aiming your bow at the ground at a 45deg angle and shooting, you'll release all kinetic energy stored in your crossbow. And, at 500 gr., it's suitable for use with even the most powerful equipment. Glow Tech fletching makes the cock vane easy to distinguish. 100% biodegradable construction. Imported. De-cocking bolts for a safe and controlled crossbow deactivation (5 bolts included)Glow in the dark for correct fletch and nock track alignment 500 GrainsReady to snap into Barnett lightweight quiverLength: 9 inch