Adjustable Line Control for Spools and LeadersThe KastKing Line Boss is a simple tool for managing loose line on filler spools and leader spools. Its adjustable woven band fits a wide range of spool sizes and applies controlled tension for storage or spooling reels. A stainless steel eyelet guides the line smoothly during use. Manages loose line on filler and leader spools Adjustable fit for many spool sizes Applies controlled tension during spooling Stainless steel eyelet guides line Compatible with spinning and casting reel spooling tools