Lamson Konic II Spare Spool 1.5 Fly Line Weight: [1.5] 4 WF, [2] 6 WF, [3.5] 6 WF, [4] 10 WF Material: ALDC12 aluminum alloy, [finish] anodized, polyurethane coating Backing Capacity: [1.5] 100 yards 12 lb, [2] 100 yards 20 lb, [3.5] 200 yards 20 lb, [4] 240 yards 30 lb Recommended Use: fly fishing Manufacturer Warranty: lifetime