Palettes are most commonly made of wood, plastic, and ceramic. Made from sustainably sourced wood and 90% recycled display cards. Laser-cut wood Stained with water based dye. Ear wires are silver-finished 304L stainless steel, hypoallergenic, and enhanced with a new, smooth and consistent electrophoretic coating that resists tarnishing. Made In U.S.A. Size 1" x 1.2".