Update International AST-4BK Bakelite Plastic Round Ash Tray, Black - Set of 3 Its sturdy plastic design makes this ash tray superior to its glass counter parts Their tapered design allows for multiple ash trays to be easily and neatly stacked when not in use Made of heat-resistant bake lite plastic, these ashtrays are great for indoor or outdoor use Available in black color Measures 1-3/4-inch depth by 4-inch diameter