CONSTRUCTION: Black anodized machined aluminum housing ("Hard Bodyz" Body & Side Cover) Over-sized Digigear increases gear-tooth contact points Solid screw-in handle provides zero movement or play between the main gear and handle arm Air rotor reduces unnecessary weight while distributing stress evenly Dynamic cut aluminum ABS spool Braided line ready spool Waterproof drag system Carbon ATD Machined aluminum screw-in handle 6+1 ball bearings Infinite Anti-Reverse System (1500-4000 reel sizes) Manual Return Bail (4500-8000 reel sizes) Infinite Dual Anti-Reverse System (4500-8000 reel sizes)