Mimicking the phosphorescent envelope found around stars, Chrona lights create a luminous glow by combining spun brass and diffused acrylic. Brass, acrylic diffuser, Ø 10, H 10 (in) ADA compliant. For use in a dry location. Brass will tarnish and become dull over time. Use a polishing cloth to remove the tarnish. Seal with wax as needed. Do not use aggressive detergent on brass.