Want to protect your boat? Add end caps to your straight arm dredge bars. Attach your swivel sleeves leaving a 3/4" gap at the end. Simply slide on the end cap and use a heat gun to shrink them down onto the wire. For use on Light Wire 0.093", Heavy 0.125" and Super Heavy 0.150" dredge bars. Keep scratches off your boat without jeorpardizing the fish attraction.