The "powerful BB swivel" overcomes the weaknesses of conventional ball bearing swivels, which were worried about strength. Thoroughly improved the internal structure of the bearing, which consists of three parts. Higher strength is achieved by increasing the volume of the core material.

High-grade SUS304H balls with high sphericity are used for the bearing balls. Maintains high rotational performance even when tension is applied when fighting with a big fish. It is possible to minimize the burden on the line even in the battle of one game at a time. In addition, even in jigging in shallow water where a lot of cast is used, the thread twist that causes line troubles is improved.