Everyday Round Door Bell Chime Button, Size: 2-1/2", Brass Go to amazon.com Related posts Expert choice for doorbell button FeatureDoor bell chime round button2-1/2" Round Unlighted Polished BrassQuality at an Everyday Price DescriptionDoor chime button - 2-1/2 inches round unlighted polished brass - use with wired chimes, bells and buzzers.