The Nash Lead Clip Tail Rubbers are designed to give you the optimum tuning of lead release for Lead Clips by allowing you to increase or decrease the ejection pressure required using the internal ribs of the rubbers. By varying the grip on the corresponding ribs of the Lead Clip's rear spigot you can choose to eject weights quickly, or increase the grip for bags to be cast long distances without fear of accidental lead loss when the end tackle hits water.