WMR-002-COASTER - MARBLE RUN WOODEN KIT COASTERFlip Toys has launched its next Wooden Marble Run model called Coaster! This model brings the same fun STEM learning experience as the Spiral model but with a larger build and with more twists and turns. Wooden Marble Run products are a set of wooden construction puzzle toys which require diecut pieces to be assembled into a marble run. Propelled by either a solar panel or battery this indemand gift is the must buy product for kids age 8 88.