Well Constructed: Solid Iron Structure, Unique Design. Rugged and durable Molding with High Weight Limit,Flexible Installation: Recommended use 1'' x 8''/ 2'' x 8'' & 1'' x 9''/ 2'' x 9'' & 1'' x 10''/ 2''x10'' standard wood board for 6 Inches brackets; upside-down installation turns out great as well.****No boards or shelves are included****,Multi-Application: For Storage Rack, Bookshelf, Kitchen Shelving, Display Shelf, Commodity shelf,Garden, Coffee Stores and Bars, etc. It's great choice for indoor or outdoor use.,High Temperature Coated Finish. Deep Rust Prevention. Smooth and stable surface and each brackets can be stained to a variety of colors to match your decor and style,Can be used for connecting furniture joint corner board to strengthen the right angle corner joints against compressive failure