Advantage: The balancer has a solid metal structure with strong load capacity. It can effectively balance the weight of the tool, reduce the burden on the operator, maintain the durability of repetitive work, and improve work efficiency. Instruction: The spring balancer can adjust the tension through the knob, counterclockwise to increase the tension and clockwise to decrease the tension. Application: Retractable spring balancers are designed to support and balance tools or equipment, making it easier for users to use them without feeling their full weight. They are often used in automotive, manufacturing, construction and warehouse applications to hang drills, pneumatic tools and other heavy equipment that needs to be easily accessible and moveable. Color: As shown Material: Metal Span length: 1.4 m / 4.6 ft Balancer size: 220 x 100 x 35 mm / 8.7 x 3.9 x 1.4 in (LxWxH) Capacity: 1.5-3 kg / 3.3-6.6 lbs 0.5-1.5 kg / 1.1-3.3 lbs 3-5 kg / 6.6-11 lbs NOTE: Check the spring balancer regularly for signs of wear or damage. Do not exceed the maximum load capacity of the balancer to prevent accidents. Package Contents: 1 * Retractable Spring Balancer Only the above package contents, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.