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105 pcs see-through marble run pieces allow you to see all the action.
Integrates the concepts of construction and design.
Build a marble run track that twists, turns, races and spins marbles at incredible speeds!
Exercise your hand-eye coordination and spatial skills while putting your imagination to the test.
Promotes creativity with endless configurations. Recommended age: 3 years and up.
105PCS Weoxpr Run Railway Toys Maze Balls Construction Child Building Blocks Toys Endless Design Maze Classic Toy For Kids. - LFDDIU6NF