Trouble deciding how to place your shelves on the wall properly, Use these amazing strong floor flanges to support any kind of book shelf or hang a black pipe rack, urban clothes rack, or other items to the wall. These can also be used to support tables and tv stands, floating shelves, bed frames and will attach lamp lighting to walls. Use these on the latest DIY plumbing pipe product you want to make, Made of iron, these home decoration accents possess great strength and adaptability to all types of environments due its anti-rust treatment. These pipe shelving flanges are multipurpose and can be used both outdoors and indoors. These metal decors are economically priced. The fine protective coating in this wall decor not only offers protection but also works well with chic, retro, modern rustic, farmhouse and the vintage styles and will stand out from the rest of the room. From the manufacturer: Pack contains 8 1/2 black floor flanges Material Malleable Iron and Carbon Size Each flange fits a 1/2 pipe and measures ___ across High quality and durable material used.