"A little push brings action to your child's room. With this construction kit, seven year-olds can build their own chain reaction model, where a fischertechnik trick triggers a big reaction. When the weight falls on the plate, it sends the ball rolling along an exciting course until it hits the fischertechnik building block, triggering a domino effect that makes the catapult launch ... These are just some of the reactions that deliver action to your child??¢s room. Use the building instructions to build three different chain reaction models. Your creativity knows no bounds. Young inventors can create their own exciting reactions, even integrating non-fischertechnik parts like dominoes or other toys into the course. A fun, colourful starter set for young builders. Other inspiring chain reaction videos are available on the fischertechnik website to help boost kids??creativity. "