Frame Molding is Made from Polystyrene Material and the Mirror is Glass The 4 inch wide ridged frame has a brushed black finish Overall Measurements: 28 Inches x 34 Inches Reflection Measurements: 22 Inches x 28 Inches Featuring a 1 inch wide bevel 4 D-Ring hangers attached for quick and easy installation either vertically or horizontally.Frame Molding is made from polystyrene material and the mirror is glass