HAGANE Body: The HAGANE Body is a metal reel body with high rigidity. The body rigidity and impact resistance virtually eliminates body flexing. The result transforms the angler's actions directly into cranking power. It's efficiency through strength. Cross Carbon Drag: This drag material provides a wider range of drag settings, along with the smoothest Shimano drag performance ever. Core Protect: The concept of COREPROTECT is simple... to provide water resistance without creating a heavy rotation feeling. There are three key areas of the reel that require protection; the roller clutch, the body and the line roller. SA-RB Bearing: These bearings have been through the same process as our A-RB bearings, but feature shields on both sides of the bearings that reduce the possibility of salt or sand inhibiting the bearing's rotation. Synchronized Levelwind