Constructor GraviTrax: Extension Trax pack

GraviTrax - the power of gravity! Extension Trax pack includes: 16x Large Vertical Tiles/ 8x Small Vertical Tiles/ 7x Curved Bases/ 1x 'X' Base/ 1x Long Rail/ 2x Medium Rails/ 3x Short Rails/ 6x 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.