4 Ton Capacity, Double Ratchet Drive Cable Power Puller, 42:1 Leverage, 6' Pull, 5/16" Galvanized Aircraft Cable, Cable Limiter Keeps 2 Wraps Of Cable On The Ratchet Wheel, Releases Load 1 Notch At A Time, Zinc Plated For Rust Resistance, Drop Forged Safety Hooks, Meets OSHA Specs, Meets ASME Spec B30.21-1999.