The product is a set of 20 aluminum extrusion brackets from the 10 Series, measuring 1" x 1" x 1.2 inches each. These corner-mounted brackets come with screws and nuts for easy installation. The polished finish adds a sleek look to the square-shaped brackets, which weigh 1.58 pounds each. Perfect for joining and supporting materials in industrial and business applications, these reliable brackets are manufactured by Blccloy. (A25I32-18:1) [10]