Constructor GraviTrax: Extension Magnetic Cannon

GraviTrax - the power of gravity! Extension Magnetic Cannon pack includes: 1x Magnetic Cannon/ 3x Gravity Spheres.

GraviTrax allows you to design and build your own marble runs and experiment with gravity / magnetism and kinetics to propel your marble to the finish. With a variety of tiles levels,tracks and elements you can control the speed of the marble.