This is one of those little accessories that actually works and was the talk of the 2009 Fly Fishing Retailers Show. The Loon SharkTooth Tippet Control System is designed to fit over your existing tippet spools, comes in two sizes Small and Large. Once fitted on your tippet spool it becomes a highly functional tippet cutter, no more wasted time searching for nippers or using your teeth. The smooth cutting action leaves the perfect amount of tippet exposed and eliminates tipped waste. Reusable from spool to spool.