This is a anqtiue vintage Metal Square 3 dimensional Door, Cabinet, Drawer handle, pull, knob. It is heavy and sturdy. It measures approximately 3 3/4 inches x 3 3/4 inches. It is from an estate.  I am not sure if it is brass or copper.  It feels heavy and is some metal.  Could be brass, though not sure.  When you tap it, it sounds like metal. Please see the pictures for an accurate description. Please email me with any questions or concerns. I do have other decorative hardware from a 80 year old estate listed and will be listing a lot more. Please email me if you are interested.  I can provide combined shipping discounts. Thanks for looking.