The Oiled Bronze Dragonfly Doorbell Ringer was designed by Michael Healy, an accomplished Rhode Island artisan. He enjoyed studying the acrobatic flight of dragonflies while fly fishing in the pond near his cottage. On one August morning, Michael found a large dragonfly perched by the front door. The dragonfly eventually flew away but left behind a wonderful idea for one of Michael Healy's doorbell ringer designs.The Dragonfly is cast in solid bronze it was hand-crafted using the age old art of foundry casting. During the foundry casting process molten bronze is heated to over 2000°F then carefully poured into a handmade sand mold. This mold is used only once, giving each Doorbell Ringer its individual character. The Dragonfly Doorbell Ringer is then given a statuary oiled bronze finish, highlighted by hand and coated with a clear lacquer to protect its original finish. It has been signed by the artist, Michael Healy, to confirm its authenticity. Compatible with all wired doorbells. Mounting hardware included.