Improve your arrow flight and accuracy with the Allen Company Archery Compact Thumb Activated Release 15396A. Features comfort molded finger grooves and an easy to use thumb trigger. Automatically locks on the bowstring and can be used on a bowstring or string loop. Rugged composite construction and tested up to 75 pounds. It can be used by any Right- or left-handed archer. Weighing 0.15 lbs.