Wooden Marble Run Stepped Hoist Mechanical Model KitDetails: You look "marble ous!" Introducing the mechanical Marble Run Stepped Hoist, the second in a series of Ugears modular marble runs. This fun and fascinating wooden marble run features an ingenious 3 stepped alternating lift mechanism and a set of new features to hold your attention as you watch the marbles make their cyclical journey. Multiple tracks and elements are packed into a compact space in this DIY marble run. The wooden marble track