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they can participate in tactile play using tweezers to hold and move objects
DIY model kits
which can be inspected both before and after the effect
interactive videos
Colour Swap - Gravitrax Add-On Size:Ages 8+ they can participate in tactileA clever tunnel shaped action block that gives the illusion of changing the color of a marble. By a clever sleight of hand, the ball goes inside the block and comes out in another color. An easy to master magic trick that is sure to have a spectacular effect in a GraviTrax marble run! Infinitely Modular And Compatible with all GraviTrax products. This action block is played with at least one Starter Set (essential to get started) and then combines