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Wooden Newton's Cradle DIY｜physics STEM kit
DIY 木製潛望鏡｜光學反射原理｜STEM 科學手作
Wooden Tower of Hanoi｜math logic puzzle
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wooden-9x9-sudoku-board-with-drawer
HK$308
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wooden-colour-tangram-puzzle-18cm
HK$508
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wooden-triangle-fraction-boards-4pcs
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