Tru-ball makes the best release out there! New Tru-Ball Stinger Standard Caliper Release. Top features at a great price. Load easily by pulling the trigger to open the jaws and letting up to close them! Completely silent for successful hunting. Easy to open and close. Folds back to tuck into your sleeve when not in use. Swivels 360 degrees at the base of the strap. Adjustable sensitivity screw.