The Marbulous Marble Run set is designed for enjoyment. This fun construction kit encourages childrens creative abilities and manipulative skills.Marbulous Fun for Everybody! This marble run kit contains 220 brightly coloured pieces. Click each piece firmly together to build a variety of structures. Marbles race through the maze of cylinders and bridges and roll out at the bottom. Then, place your marble at the start for fun all over again.Build Your Own Marble Run The higher you build your marble maze, the more unstable your structure gets! For best possible results, set up your construction kit on a flat, stable surface. Adult assistance may be required, as this will help ensure that the marble doesnt get stuck at any point during the route.Pro-Tip: When building this construction kit, be sure to build in a Z-shapelike a folding screen! This will help your Marbulous set stand on its own.