Extend the life of your leader. White River Fly Shops Tippet Ring gives you a fast and easy system for changing the size of your tippet. Unlike a blood knot or double surgeons knot, the use of a Tippet Ring allows a fly angler to connect a tippet that is significantly different in diameter than the end of the leader. For example, its difficult to connect a 3X leader to a 7X tippet with a knot. But with the use of a White River Fly Shop Tippet Ring, its quick and easy. Thus, you can quickly change tippet diameters without the need to drastically rebuild or restructure your leader. Per 10. Outside dia: 2mm. Inside dia: 1mm. Color: Black Nickel. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Tippet Ring.