Orvis Hydros SL Fly Reel Material: aluminum Drag System: fully-sealed carbon on stainless disc Backing Capacity: [II+WF3] 150 yards, [III+WF5] 150 yards, [IV+WF7] 225 yards, [V+WF9] 250 yards Diameter: [II] 3.5 in, [III] 3.875 in, [IV] 4.25 in, [V] 4.5 in Fly Line Weight: [II] 3 - 5 wt, [III] 5 - 7 wt, [IV] 7 - 9 wt, [V] 9 - 11 wt