X-Tra Tough hardened graphite body and rotor. Long Life sealed stainless steel ball bearings. Infinite anti-reverse. Large section stainless steel shaft. Worm Shaft. Slow vertical oscillation of the coil. Quick closing Smart Drag front drag. PTFE-coated clutch discs for exceptional pull. Aerospace-class aluminum spool, lightened by holes. 2x Additional coils in PTFE. Headband with increased section (Powerbail). Anti-Twist Titanium wire guide roller. Turned aluminum handle with ergonomic knob.