The Action Reaction range provides endless fun and stimulates creativity. It is a unique scientific kit to learn the physics principles, design tracks and experiment gravity, force and lever by using the several parts and accessories provided. The range includes products which allow the child to create amazing routes and which can be personalised also using objects available at home, perfect to maximise the playing activities and stimulates the imagination A fantastic kit compatible with the entire Action and Reaction range to create even more astonishing circuits and embark on breathtaking challenges With the fork you can split your tracks, change the direction of the balls and challenge the force of gravity Track, platforms, junctions, crossroads and balls are included. A perfect game to experiment with the basics of physics in an engaging and truly creative way The manual included guides the child step-by-step through endless fun An educational science kit.