Propulsion Line Management System: Propulsion Spool Lip, Power Roller III, S-Arm Cam. Shielded stainless steel ball bearings. Lightweight Graphite Frame side plate, and rotor. Cold forged aluminum spool. Rubber handle grips. Fluidrive II. Dyna-Balance. Super Stopper II. Repairable clicker. Approved for use in saltwater. Rated for use with Mono, Fluorocarbon and PowerPro lines.