The Carlisle Brass Rectangular Bell Push Polished Brass is designed to be used with a battery or transformer fed door bell. It has a simple modern design and a 6mm projection when fitted. This bell is made from solid brass & has a polished brass finish. This bell push is very easy to maintain with just a light dusting & occasional cleaning with soap & water to remove dirty deposits. The lacquer on the polished brass needs a little care & attention to keep it intact, as once damaged, the brass underneath will begin to tarnish. However, cleaning & a light coating o...