Experience the power of gravity with Gravitrax, a new STEM track system powered by magnets, gravity and kinetic energy. Build your track and set the Gravity Spheres rolling. Create your own track design or use the tasks and blueprints included to get started in the world of Gravitrax. If the Gravity Spheres stop or fly off before reaching the target, put your problem solving skills to the test and try something different. The starter set comes with over 100 components, including everything you need to get started: 4x Card Bases, 2x Transparent levels, 6x Gravity Spheres, 3x Long Rails, 6x Medium Rails, 9x Short Rails, 1x Magnetic Cannon, 21x Curved Bases, 3x ‘X’ intersection Bases, 1x Vortex Base, 2x ‘Y’ Points Bases, 1x End target, 1x 3in1 Base, 4x Bases for inserts, 1x 3 Way Starter Base Insert, 2x Catcher Base Inserts, 2x Switches, 1x Base Insert, 1x Free Fall Base Insert, 1x Target Base Insert, 40x Large Vertical Tiles, 12x Small Vertical Tiles.