This innovative marble run uses a strong yet removable adhesive material to stick to smooth, vertical surfaces. Design and build your own epic marble runs without the height limitations of traditional marble runs, which must be built up from a horizontal surface. Place the flexible tracks and stunt elements where you want them, then take some test runs with the metal marbles. You can move parts and change your setup with ease to achieve the perfect run.Details:Includes assorted piecesOver 60 partsMulti-surface: sticks to doors, windows, vertical surfaces and moreResidue-free: removes cleanlyInfinite play: repositions again and againLimitless: Every-changing, non-stop rolling funFast, no-mess setupIncludes 16-page full-color manual with tips and tricksTracks made from renewable raw materialsFor ages 8 and upContents:27 adapters12 tracks7 metal marbles5 sheets with nano-adhesive pads4 track turns3 track bridges2 levers1 switch1 funnel with outlet1 Gecko tool