The Singing Rock Easy Chair Lift Rescue Pulley is designed for progression and evacuation along ski lift cables during rescue operations. Its aluminum side plates and durable sheave support steel cables up to 55 mm, while the pulley provides a 30 kN strength rating and 5 kN working load. A unique production number is engraved on each unit for identification and equipment tracking. The pulley must always be used with a backup lanyard and braking or belay rope.