Made of High Quality Restaurant Grade Stainless steel 304 (18-8) - 16 GAUGE (.0625") thick. NOT CHEAP 400 series shelves that are made overseas. Shelf comes with 2 angle brackets, one on each side. Each bracket has a small machine screw that attaches to the shelf. Restaurant Quality and Strength. Shelves easily hold 375+ Lbs when mounted properly. MADE IN THE USA by DMT Stainless LLC in California.