AIMO Spring Balancer 3-5kg Load Bearing Self Locking Retractable Tool Holder with 1.9m Wire Rope and Hook

Working Principle: The spring balancer utilizes the power of spring to keep suspended objects in a certain state, can easily move suspended objects up and down or stay in any position with very little force. Feature: The spring balancer is equipped with a device, which can immediately lock if the suspended object is overweight or the coil spring breaks, preventing the suspended object from falling. Strong Load Bearing: This retractable tool holder is designed to support heavy tools, which can handle weights of 3 to 5 kg, suitable for a variety of demanding applications. Item Type: Spring Balancer Material: Aluminum Stroke Length: Approx. 1.9m Celsius 6.23ft