The Trio Baitfeeders feature Okuma's Crossover Construction technology. This technology utilizes lightweight graphite construction that is bolstered with solid aluminum in all the right places. Additional features of the Okuma Trio Baitfeeder Spinning Reels include: Multi-disk Japanese oiled felt drag washers. 9 Stainless steel ball bearings. 1 Quick-set anti-reverse roller bearing. Precision elliptical gearing. HDGII: Corrosion resistant, high density gearing. CRC: Corrosion resistant body coating process. ADC aluminum drag chamber. Crossover aluminum and graphite hybrid body, rotor and spool design. EOS: Patented, elliptical oscillation system. Rigid, forged aluminum handle design. Size 30 & 40 reels feature a traditional lightweight EVA knob. Size 55, 65 & 80 reels feature an oversized ball shaped EVA power handle. Oversized ball shaped EVA power handle provides maximum grip and leverage. DFD: Dual force drag system. Hydro block watertight drag seal. Heavy duty, solid aluminum bail wire. RESII: Computer-balanced Rotor. Narrow blade body design.