This is a 2-piece silicone bottle cleaning brush set designed for cleaning long straw spouts in the kitchen. The brushes have plastic bristles and gray silicone head with a hanging hook for easy storage. They are non-toxic, with handles for easy grip and scrubbing. One piece is 13 inches long heavy duty silicone and suitable for kitchen cleaning mugs, bottles and cups and one is 10 inches long with a metal handle and white stiff fiber bristles can be used for straws.