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SM06 双面变色板 Double-sided color changing board
LD乐动体育（中国）官方网站规格：85x30x135cm
认识三原色。观察彩色板叠加后产生的颜色变化，透过彩色透明纸观察不一样的色彩世界。
Know three-primary colors. Observe changes of color after superposition of color boards.Observe different color worlds through the transparent colorful papers.
