STRADIC SW has been attacking the harsh sea fishing scene with its power, toughness, and waterproof performance that are comparable to those of higher-end models. Such a super practical reel has finally been renewed with the evolution of the right reel in the right place by product number. No.4000 is based on the acclaimed 23 STRADIC, introducing INFINITYXROSS, INFINITYDRIVE, and ANTITWISTFIN to pursues further comfort of use such as improved gear durability and suppression of line trouble. Each model from No.5000 to No.10,000 is equipped with X TOUGH DRAG, which achieves improved specifications in terms of durability, heat dissipation, and maximum drag force. The specifications are designed for fighting with heavy weight lures and large fish. In addition, the No.5000 and No.6000 eliminate the conventional bail auto-return mechanism to shut out trouble in casting. A total of nine items have been narrowed down to construct a series more suited to practical use along with performance that surpasses its class.