The Buckingham Tear Away Bungee Chainsaw Lanyard is designed for safety and convenience. It is constructed with a tear away safety pack that activates when 90kg of force is applied. This feature reduces the risk of the user being pulled out of a tree if the saw gets hung up on a falling limb. It measures 4ft when fully extended to provide ample reach when cutting. NOT TO BE USED WITH SAWS WEIGHING MORE THAN 7kg.