Ball Track – Master Construction Kit

$2590

99 件庫存

商品說明

  • in the big speed circle, the marbles whiz around in the circle, first slowly, then faster and faster
  • includes sound effect track with two different sounding bells
  • practical marble container with lots of functions: for collection, storage and quick marble pouring
  • discover the laws of physics in play: in the conical marble canyon marbles initially slow down and then speed up
  • the beech wood originates from domestic forests
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