-STAN Onnex releases are designed with legacy features archers must have built into a complete shooting system -Each Onnex handle will allow for the shooter to change between one of the three handle types thumb button, back tension, & resistance seamlessly while maintaining anchor point & peep height -Open hook design for consistent and accurate lateral nock travel -Crisp breaking activation with both independent trigger travel and trigger tension adjustments -Loop retainer allows connection to your bow with the single open hook, while keeping your release connected -Available in multiple sizes to comfortably fit any archers hands -Built on a modular body the release may be shot as a two finger, three finger, or four finger all with one button head screw adjustment with a 5/64 Allen key -Includes two length barrel posts one long and one short as well as two barrel sizes a small and large for perfect hand fit -STAN Trainer Lock feature allows for practice of trigger activation without actually firing