This rope grab automatically follows you, giving you greater freedom of movement and virtually hands-free operation. Can be installed or removed at any point on the lifeline. The rope grab utilizes a cam lever as well as a friction sensitive brake to lock the rope grab onto the lifeline in case of a fall, even if the operator holds the device open in a panic situation. Revolutionary design is less sensitive to rope variations. It works on worn rope with no annoying lock-ups. Made of corrosion resistant stainless steel and thermoplastic. Fits 5/8" diameter nylon or polyester rope. Meets or exceeds all applicable industry standards.