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Laser glitter is an optical pigment with dynamic color change function, which is composed of micro-nano structure metal coating (such as aluminum). Its core feature is angular color change - it presents a rainbow-like halo at different observation angles, and produces a clear rainbow ring effect when focusing light. Laser glitter has a silver-gray or colored powder appearance, with a particle size ranging from nanometers to millimeters, and common shapes include quadrilaterals, hexagons, circles or silk strips. Laser glitter has become a star material in the beauty industry and industrial design due to its dynamic color change and high glitter characteristics.