STEM Kit Dynamic S, Metal Ball Obstacle Course Metal ball obstacle course set, in which two classic game systems are combined for maximum fun! The ball starts the obstacle course and accelerates to the first intersection, where it descends before continuing the race on two different tracks - to the left and to the right. The ball flies through several tight curves and over a seesaw before crashing into the sound tube - BANG! Young engineers also have plenty of possibilities to adapt the races according to their own imagination. The proposed instructions contain three complex and original circuit models: simple obstacle course, action obstacle course and double track obstacle course. Discover the fascinating and creative world of Fischertechnik obstacle course! The Dynamic S set can be combined with the building sets 544618 Dynamic XM, 533872 Dynamic M and 536621 Dynamic L2 Contains 140 pieces. Recommended age: +7 years. Made of plastic. According to EN71&ASTM regulations. WARNING: Not recommended for children under 3 years, contains small parts. Adult supervision is recommended during play. Read the instructions before use, follow them and keep them for reference. Made in Germany by Fischertechnik.