[Heavy Duty Design, Industrial Quality] Heavy duty pipe rack brackets are made of high quality malleable cast iron with high hardness. A pair of sturdy shelving tube brackets can hold up to 66 pounds and are very durable. The surface is sprayed with black bright paint, which is of good quality, will not scratch, will not fall off, and prevent rust and corrosion. Smooth edges ensure no skin cuts while working. The finished pipe thread makes it a perfect fit for the flange. [Easy to install and display] The pipe rack bracket is very easy and quick to install and remove. Simply attach the pipe rack supports to the planks and walls using a power drill and screws. The sturdy shelf stand is 5.5 in length and 3.5 in width and fits boards 7-12 inches wide. You can use it to DIY floating shelves and other wooden shelves such as bookshelves, kitchen shelves, bedroom shelves and tool racks. It can also be used as a small rack for clothes hangers. [RUSTIC INDUSTRIAL DESIGN] Black L-shaped 90 degree design is more unique than the traditional tripod, with a retro and stylish look. Mix and match these metal pipe rack supports with a variety of wood planks to give your house a farmhouse and industrial feel. You can also do your own DIY projects, paint different colors to match different decoration styles, it will be fun and creative.