The legacy of STELLA represents the long history of Shimano industry leading design and manufacturing technologies, the development is never-ending. Infinity Cross technology achieves overwhelming gear durability through a revised drive and pinion gear design with improved surface area contact and meshing. Infinity Loop creates a precise winding pattern which drastically reduces friction as line leaves the spool, resulting in exceptional casting performance. Infinity Drive greatly decreases frictional resistance, increasing power transmission and torque when winding under heavy loads. An Anti-Twist Fin has been installed near the line roller to maintain line tension and prevent line wrapping around the spool in an uneven manner. While Dura Cross, a revolutionary new drag washer design, provides a substantial increase in durability while providing smooth consistent drag performance. In addition to this, the Stella continues to feature the super durable cold forged Hagane Gear, Micromodule II gearing, Silent Drive and X-Ship for smooth transmission and light winding. To ensure on water performance X Protect water resistant technology still features and the Long Stroke Spool design provides Maximum casting performance.