Marble Run Spiral HoistFEATURES Marble Run Spiral Hoist wooden 3D puzzle from Ugears The Marble Run Spiral Hoist is the fourth model in the Ugears collection of fascinating DIY wooden mechanical marble runs. The hoist has two types of rails to speed the ascent: the main spiral rails and vertical rails. Turn the crank to lift the colored glass marbles upwards (one marble rises per nine revolutions of the winding crank) to the three marble storage up top. From there the