A game of chain reactions, reflection and wooden constructions. Children can create routes following the 3 models indicated in the instructions or always inventing new ones. The packages of this game (from 7 years up) are compatible with each other, to create even more ingenious action-reaction routes ./P> Construction game: Take skill test to place the various elements and form a path. Chain reaction game: Children discover the ingenuity and magic of different chain reactions! Reflection game: study the speed that varies according to the weight and evaluate the distances that separate the various elements. A step by step instruction booklet with 3 models to guide children in the path creation. Read the QR code to view the video. Imagine an infinite number of paths and fun hours! For one or more players. Colorful wood and quality elements. Content: 1 construction game consisting of 25 wooden elements and 2 metal marbles. 1 instruction booklet of 16 pages included. Age: 7-99 years. Package width: 24.5 cm Package height: 24.5 cm Depth Package: 5.5 cm