Aluminum alloy ends, steel poles and steel brackets. 7/8 inch rod diameter ensures handling heavy draperies up to 30 pounds. Wrap curtains around window from end to end, blocking out light while insulating the room. 7/8 inch diameter rod adjusts from 35 to 75 inches excluding finials and projects 2.7 inches. All dimensions are shown in the last image (Size Guide). Mounting type: Ceiling mounted and wall mounted. Comes with mounting hardware, including screws, anchors, and installation instructions.