9BB + 1RB. Quick-set anti-reverse roller bearing. 1-piece stamped aluminum reel stem and rotor arm paired with lightweight graphite side plates. Dual Force Drag system. Multi-disc Japanese-oiled felt drag washers. Patented Elliptical Oscillation System. Corrosion resistant coating process. High density gearing. Special coating of Corrosion X HD to all internal housing and parts.