Release Aid Trainer & Checker Firing-Line™ is the ultimate training tool for archers. So compact, it stows in a brief case…perfect for practicing anywhere, anytime. With quick draw-length adjustment, this firing-line bow trainer great for warming up, tuning a release or muscles. Even better, it can overcome everyone’s nemesis…target panic. Never worry about throwing an arrow…just aim and practice the perfect release, time-after-time. With each smooth and quiet shot you burn-in muscle memory so when its the real thing, you burn the x-ring or the kill zone. Adjusts from 32 3/8 inch to 24 inch draw length. The optional three pound weight set gives you the feel of your bow. Firing-Line…The place to practice. (Release not included).