BLACK BIRD Multi-Colored Balls for Home,Office Decoration & Stress Relief etc 216 Pcs 5MM 8 Colors Balls (216 Multi-Colored Balls)(216 Pieces)
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The magnetic balls can be combined into an infinite geometry freely. Magnet toys occupy your mind and hands to train your brain and relieve stress. Magnet science kit keep you away from mobile phone and computer, protect your eyes. Improve your spatial imagination, logical reasoning ability and manipulative ability.
