Steel Quick Install Manual Trolley, 7 In. x 11-5/8 In. x 12 In. 2000 Lb. Load Capacity, Warehouse Overhead Lifting, Gantry, Gantry Cranes, Gantry Crane trolley, Hoist Trolly, Commercial Hoist Trolley, Autobody Hoist For Overhead Lifting, Warehouse Dock Gantry, Hoist Trolly, Ergonomic heavy Material Lifting, Material Handling, Material Overhead Lifting and movement, Ergonomic equipment used with Gantry Cranes and overhead Lifting Equipment