ITEM NAME:DIY Colored Rotating Kaleidoscope Kits Science Educational Craft Kid Toys PTJClj.The pattern effect of the Kaleidoscope: the hexagonal pattern. The kaleidoscope looks fantastic, but it's actually quite simple. The principle of the kaleidoscope is to use the mirror surface of the equilateral triangle to reflect and refract the beads glass in corner to form a beautiful regular pattern.
