Durable materialCold rolled steel (iron) + nickel plated or zinc plated, strong and durable. Used for suspension floats, etc. Strong load capacityThis shelf bracket has better performance and will be your floating shelf assistant. Completely hidden Small ledge bracket, can be invisible after installation. Package included4 shelf support bars Practical Products These hidden mounting brackets are perfect for custom shelves, hidden shelves and DIY walls, so you can place your bKARs decorations.product Heavy-duty wall-mounted concealed brackets and floating shelf brackets Choose a shelf that meets your storage and display needs, bKAR and practical! The board support brackets can support and fix various tKARs wall shelves such as shelves, display racks, garage storage shelves, decorative shelves, bathroom shelves, shoe shelves , etc. It can definitely satisfy your various designs of DIY wall mounts. Save space The mounting hardware will help you maximize space and flexibility in your home.< /p> Strong enough to hold a shelf For your storage or decoration needs, this wall decoration hardware can be used in tight spaces or to hang invisible shelves on the wall. p> Elegant presentation: A stylish storage solution that can make your home look clean and bKAR! Once installed, your sturdy shelf bracket can hold decorations for the tKARs home as photos, sculptures, mini planters and more, adding an elegant touch to your decor. Product specifications: Hole distance: 42mm, thickness: about 4mm, weight: about 71.2g. material: metal Main color: silver Package included: 4 3-inch invisible shelf brackets