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. With new and advanced searing mechanisms that still allow for micro-adjustability. Draw control system that is activated by the thumb peg that assists in achieving a fluid and consistent shot. Self-resetting hook. No click hasp installed and medium click hasp included. Adjustable thumb peg and finger bed. Available in small, medium, large and extra-large to comfortably fit any archer’s hands. STAN Trainer Lock feature allows for practice of trigger activation without actually firing.