The Eagle Claw Lazer Sharp Wacky Worm Fishing Tool is designed to improve and make fishing with wacky rigs more effective and efficient. It is built for many sizes of worms. It is made of hollowed metal construction. This tool is made to help anglers with adding O-Rings to soft plastic stickbaits. Simply insert the stickbait into the hollow portion of this tool and slide the O-Ring up onto the stickbait. You can store your extra O-Rings with this tool as well.