This is a fun-to-build marble run 3D wooden puzzle toy. Get ready to race against time & speed with this amazing wooden marble run set!
 
Parkour Marble Run  is a mechanical gears 3D wooden puzzle based on great human engineering. Its design combines the beauty of science and machines, involving so many small gadgets. Build this marble run 3D wooden puzzle set and crank the handle, watch marbles run crazy down the slopes and twisting turns. Have fun!