Allows you to shoot shorter, lighter arrows with increasing arrow velocities; with a substantially and flattening the arrow trajectory making the range estimates less critical. Features: Adjusts to fit virtually any bow with standard rest/plunger bushings. Full broadhead protection for your hand with exclusive arrow enclosure system. Exclusive Tri-Locking system secures the overdraw rigidly at three points; and will not knock or vibrate out of adjustment. Made with lightweight, durable aluminum alloy and composite materials.