The Miller MightEvac combines the superior performance and reliability of the best-selling MightyLite Self-Retracting Lifeline Series with a quick-activating retrieval mechanism for emergency evacuation. No annual factory recertification is required. This system offers significant long-term savings/lower cost of ownership, 20% lighter than competitive models, this system promotes quick and easy rescue with a 4:1 mechanical advantage (average speed of 25 ft. [7.6m] per minute) and has a 310 lb. (1.4kN) weight capacity. This unit consists of corrosion-resistant stainless steel/aluminum components and comes with a convenient, heavy-duty carrying handle.