This is a large Ornate Leaf Clavos Medallion. It is designed to hide the bolt heads used to install my Large collection of Door Knockers. It can also be used on both sides of a door screwing onto each other to create a rustic, Medieval or Gothic looking studded Door. They are cast Zinc that has been Bronze Plated. I have them in two finishes. Blackened or rubbed black Bronze and Classic Brown Bronze finishes.