Tool balancer easily installs on Tool Balancer Track Kit (sold separately). Conveniently holds tools up to 10 lbs. Slides along the Tool Balancer Track Kit for side to side placement. Tool balancer is a constant pull reel made using rugged steel with a black baked polyester finish. Includes reinforcing hanging bracket with forged clevis for easy attachment to rolling trolley hooks. Tool balancer spring is permanently lubricated and provides constant tension. 8'L tool cable is made of 7 x 7 strand galvanized steel with aircraft cable nylon covering. Balancer also includes safety tool clip and adjustable cable stop.