When the bowfishing line is tied directly to the tail of an arrow, it can knot with the bowstrings as you draw back. The knot will cause the arrow to stop short in mid-flight and suddenly “snap-back†toward the shooter. AMS Safety Slides brand arrow slides were designed to keep the bowfishing line out in front of the bow at all times. Simply nock your arrow with the arrow slide out in front of your rest. Tighten the line on your Retriever between it and the slide and push the line into the Line Retainer found on the side of your reel. As you draw the arrow slide will stay stationary as the arrow moves back. When the shot is released, the slide moves back to the tail of the arrow and stops at the Shock Pad allowing the line to trail for perfect arrow flight. Made in USA