The Brocca collection features genuine concrete that is cast directly into a solid iron cage. Part of the frame is intentionally left exposed revealing its industrial construction. A Silverdust Iron finish complements the natural concrete. The correct height for hanging wall sconces depends on many variables such as ceiling height and style of sconce. However a good guideline is the middle of the fixture should be about at eye-level, approximately 62 to 66 inches from the floor.