Allen Pulse Compact Thumb Activated Release Black. 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. Specifications for Allen Pulse Compact Thumb Activated Release: Manufacturer: Allen Color: Black Weight: 0.2 lb Size: 2.75 in Features of Allen Compact Thumb Activated Release Improve Your Arrow Flight and Accuracy Features Comfort Molded Finger Grooves Easy to Use Thumb Trigger Automatically Locks on the Bow String Tested up to 75 pounds. Right or Left-Handed Package Contents: Allen Compact Thumb Activated Release Allen 1539: Pulse Compact Thumb Activated Release Black