Check the listing for details. Stroft Line Leader Spool System With Cutter Rings Leader Spool Holder. Color: Blue, Condition: New. Listed at 33.78 USD. Stroft line leader spool system with cutter rings Stroft line leader spool system with cutter rings Leader spool system for 3 or 5 leader spools with cutter rings for simplified use and storage. Stroft leader spool system with cutter rings The cutter rings rotate (via snap-in connections) on the leader spools. They are easy to put on and easy to take off again. Because the rings are wider than the individual spools, a closed system is formed that is easy to handle and protects the leader lines from environmental influences and UV radiation. The cutter rings are always reusable. When a leader spool is empty, the cutter ring and line dispenser ring are simply removed and placed on a new, full spool. Part type: Leader spool system Product type: Leader spool system Type of fishing: Freshwater.