The only metal nocking loop that will not un-nock arrow or dislodge from arrow rest when bumped or swiveled. Adjusts to any nock size. Aligns peep sight, eliminates serving wear and improves arrow flight. Offers one release point directly behind the arrow. Has 4 anti- vibration screws. Fits virtually all release aids including Deep Engagement. Extra long maximizes release-aid clearance and increases accuracy.