Off Shore Tackle's Adjustable Planer Board Releases come with a quick clip for use on dual or triple planer boards and split rings for use on in line planer boards. Tension can be further adjusted by simply sliding the spring toward the pads to increase tension or away form the pads to decrease tension. Features Light model ideal for walleye or smaller fish using 10-25 pound monofilament Medium model commonly used for dual or triple planer board trolling using 10-25 pound monofilament Heavy model ideal for Striper, Salmon, Trout, and Muskie using 10-25 pound monofilament and lead core