Used as retroreflective materials in road markings and traffic signs to enhance visibility at night by reflecting light back to its source. Commonly added to paints and coatings for highways, airport runways, and construction zones. Also utilized in cosmetics for a smooth texture and light-diffusing effect in foundations and primers. Employed in composite materials to reduce weight and improve flow properties during manufacturing. Used in scientific research and industrial applications as calibration standards due to their uniform size and shape.