Description: 【Retractable Spring Balancer Application】: When hanging the Spring Balancer, first connect the safety chain. Rotate the adjustment worm to balance the suspended object, increase the balance force in the contrary direction, and reduce the balance force in the forward direction. When the Spring Balancer is not suspending the object, please do not empty it in the opposite direction to avoid sudden retraction of the wire rope and injuring people. 【Scope Of Application】: Hanging Tool is suitable for pneumatic and electric screwdrivers, automobile grinding tools, accessory welding, factory flow, etc. 【Durable Steel Wire Rope】: Adjustable Balancer Retractor, thickened steel wire rope, good toughness, tensile strength, solid and reliable, long use time. Save time and effort, improve efficiency, be simple and convenient, and save space 【Positioning Clamp And Buffer Device】: The positioning clamp can fix the length of the wire rope, and the buffer device can effectively prevent the wire rope from rebounding too quickly, causing damage to the Balancer Retractor. 【Adjustable Pulling Force】: Hanging Holding Equipment’s pulling force can be adjusted for easy use. Press and rotate, and unscrew counterclockwise to increase the pulling force. Press the pull knob and turn it counterclockwise to reduce the pulling force. Telescopic length 2 meters Specification: Material: ABS Size Chart: 11cmx10.8cm/4.33inchx4.25inch Package Includes: 1x Retractable Spring Balancer(4 Pack) Note: Please allow slightly errors due to manual measurement and different monitors.