Goswot Left/Right Interchangeable 12BB Ball Bearing Saltwater/Freshwater Fishing Spinning Reel 500-9000 Series Light and Smooth Left and right interchangeable collapsible rocker arm. Ball Bearings: 12 Metal cable cup with metal interchangeable collapsible rocker arm,and wooden handle Light weight body,delicate design,as well as firm junction of the handle, work smoothly, perfect tool for fishing. Excellent line lay oscillation system. Ultra-thin streamline designed body.