3 Finger Hunting Bow Release Thumb Caliper Grip Trigger Archery Aid Outdoor Shooting Practice Tool Feature: 1. The thumb style is suitable for left and right hands. Specially designed for young archers. 2. To help improve arrow speed and accuracy, it can be used for compound bows and reverse bows under 45 pounds. No more finger pain, you can use archery release assist instead of archery, so as to avoid the pain of using bow and arrow shooting for a long time. 3. You can use bows and arrows instead of bows to treat bow tie shooting. Avoid using fingers, because long-term bow tie practice will cause Bow tie shooting pain.