Concrete ashtray, clear water concrete. *Keep the original roughness of the concrete, with normal stains. *Industrial loft style will keep the traces of handmade and daily use. *Keep Dry. *Easy to clean the touch stains on Concrete Ashtray with kitchendetergent and dry with towel. *The burned stains can be removed with sandpaper. Hexagonal geometric ashtray, Wabi-sabi decor, the shape looks different from different angles, art decor your patio, office & home. Windproof with lid, for indoor or outdoor use. Stainless steel liner, drawing process surface, removable, easy to clean. Natural appearance of concrete ashtray display as the seasons change. Because of the alkaline characteristics of concrete items, the surface of the product will show different shades of color due to the difference in temperature and humidity.