1. Adopts an open-type hook that allows you to set the 2 needle tips without pulling out the worm with a safety and peace of mind. 3. Flat body that does not get tangled when casting. 4. Rubber ring attachment and a click opening and closing action 5. Post installation and sliding type for easy installation. 6 large and small rubber rings for a minimum of 0.2 inch (5 mm) rod diameter.