Build ball track yourself Build your own fast-paced marble run in a few days - a dream come true! With the 9 included glass balls can be started after successful assembly fast-paced races. The integrated ball lift moves the balls to the starting position. Now just determine the desired course - off you go! - for small engineers and those who want to become one - endless fun with 50 cm height - 143 cardboard parts with plug-in system - no gluing required - integrated ball lift - incl. complete set with 9 matching balls Everything in, everything on - you can start right away! A total of 143 plug-in parts made of sturdy cardboard make an impressive ball track with a height of 50 cm. When selecting the components, great importance was attached to sustainability - play fun without plastic. Sophisticated technology - it remains guaranteed exciting! Integrated ball lift / 3 different courses with running switches for even more variety / vortex cones for even more speed and much more! This is how the assembly succeeds! Thanks to detailed step-by-step instructions, the assembly succeeds without any problems. All parts are marked to prevent confusion and are easy to separate. Clean hands are also taken care of: No glue is needed for assembly. Notes - not suitable for children under 3 years. Choking hazard as small parts can be swallowed or inhaled. - not suitable for children under 8 years. Use under adult supervision. Instructions for parents or other responsible persons are enclosed and must be followed. Keep packaging and instructions as they contain important information.