8 sealed precision stainless steel,nrust resistant ball bearingsnDouble anodized, machined aluminum spool with holes drilled for lightnessnCybernetic body frame system gives more strength and light weightnHQ graphite drag systemnInstant anti-reverse with one way clutch roller bearingnFishmaster S is a great reel for fly fishing in streams or lakes. It has 4 sealed precision stainless steel, rust resistant ball bearings, a CNC machined aluminum alloy frame, a line out alarm, a wooden handle knob, and a nice reel bag.