The sonik pulley pennel is a custom rig designed for those who use large baits to target big fish when fishing rough ground marks pennel refers to the system of tying two hooks close together at the end of the hook trace to secure larger baits the advantage of the pulley rig when used on snaggy bottoms is that once a fish is hooked its body weight will pull the line through the top swivel to lift the sinker away from the bottom