Additional Features: A-RB (Anti-Rust Bearings) Topless Design (12 & 16 sizes only) Reduced Profile Top Crossbar (20 & 30 sizes only) High Speed Gear Ratio Oversized Gears Diecast Aluminium Frame Oversized Handle Shank Alternating Twin Pawl Anti-Reverse System Graphite Sideplates with Aluminium Braces Ergonomic Power Handle Loud Clicker Ratcheting Drag Level Metal Series