The Petzl Naja is innovative, safe, and particularly suitable for arboriculture. This friction saver is specifically designed to reduce the load on the tree during climbing. It features an adjustable strap that can be adapted to different branch diameters and an integrated pulley that provides smooth movement and less friction. The anti-wear coating on the rope provides protection against damage and extends the durability of the product. The Naja is made of aluminum, stainless steel, nylon, and polyester and has a compact design that can be easily used with both single and double strand climbing ropes. The included 21mm retriever ball makes it easy to retrieve the system from the ground. This product can be used by two people simultaneously during rescue operations. Weight: 400 grams. Conforms to: CE EN 795B and EN 12278.