The Contemporary Crowne Collection features the elegant, yet extremely durable textured Uni-Koat powder-coated finish. Fire-safe steel and aluminum construction. Recommended for indoor use only. R1536 models features a self-closing door which complies with OSHA Standards and has recessed hand grips for easy lift-off for emptying. AOT30 and AOT15 models neatly conceal poly bags between the liner and the receptacle.