Gravitrax Element Marble Box

Don’t lose your marbles! Our handy “GraviTrax Ball Box” set holds 24 of those shiny spheres you love to watch fly down your GraviTrax race track! With 4 stackable boxes included (2 green, 1 white & 1 grey), you can organize your marbles by color or just mix them up as you like. We’ve included a dozen new marbles; 6 silver and 2 each of red, blue and green. A great accessory to add to any GraviTrax product! Experience the power of gravity and educational fun today and build beyond the usual!