Robotime-ROKR Marble Explorer Marble Run LG504 is based on great human engineering. The design of this mechanical gears 3D wooden puzzle combines the beauty of science and machines, involving so many small gadgets. Build the marble run set and crank the handle, watch marbles run crazy down the slopes and twisting turns.
*Notes: Due to customs policy, the wax may not be included in the package. Wax: you could use ordinary candles, crayons, beeswax, etc.