CONSTRUCTION: 100% waterproof reel at an IPX6 level Up to 15 EverSeal rubber rings to keep water out Intrusion Shield System to reduce resistance and provide a water-tight seal Solid aluminum power handle and knob for excellent cranking power Braid-ready spool construction Technology: Six double-sided stainless steel ball bearings for smooth feel Eight-pin stainless steel one-way bearing to prevent flywheel reversal Top notch HRB 90 high strength aerospace alloy pinion gear with manganese brass gear