BOUSEI means corrosion-proof in Japanese. Using the SIC ceramic ball, BOUSEI SiC Ball Bearing is not only extremely lighter but also stiffer and slicker compared to the traditional bearings made with steel. By decreasing the friction of bearing, you will be able to shorten the time for the spin to get its peak, which is likely to bring you the higher speed in spinning. This leads to an increase in initial lure velocities and improved casting distance.
200% corrosion prevention.
Lubrication with oil is absolutely imperative in order to sustain with the instantaneous extreme high spinning speed.

2 Pcs of bearing per pack.