Heavy Duty Construction: Tripod mounts are made of cast iron. Heavy-duty construction creates sturdy components that are stronger than steel. Maximum weight capacity is 70 lbs/pair. If you want to use them for additional loads, you can use more brackets for floating shelves. L-shaped construction stabilizes at right angles, making it easy to level and get rid of wobbles. MULTIFUNCTIONAL USE:5 inches (approx. 13.2 cm) bracket (5 x 3 inches),Fits 5 - Deep Utility Shelving brackets are commonly used as bookshelves, display shelves, exterior wall brackets, garden shelves in garages, basements, storage rooms, stores, offices and factories. With heavy duty design, this shelf bracket is perfect for DIY open shelving, adding a nice touch of appearance to your house. EASY TO INSTALL WITH ALL HARDWARE: Comes with mounting accessories, including stainless steel screws and anchors. There are four holes on the top of the bracket for easy installation of screws. TIP: An electric drill is required (not included). First, mark the location if necessary and drill the holes with the drill. SPACE SAVING: Floating shelf bracket helps to create more wall space for storage or display in any room. Suitable for small places, neat and tidy. 100% SATISFACTION GUARANTEED: If you are not satisfied with our product, please feel free to contact us, our professional customer service team will be happy to provide you with replacement or refund options. Please feel free to purchase the product.