The Brass Brush Insert is a cleaning tool designed to fit into the Composite Cleaning Pencil. This brush is specifically made for cleaning dirt-encrusted bronze and brass horse brasses, buckles, plates and Cupro-Nickel modern coins. Its wire bristles are made of brass, which is less abrasive compared to steel wire, ensuring that the surface being cleaned is not damaged during the cleaning process. This brush makes cleaning these items quick and easy.