SIZE DETAILS: The total length of shelf brackets is 8.97"/22.8cm; effective length for installing your plank is 8.18"/20.8cm; the square arm width is 0.79"/2cm; the back plate is 3.15"/8cm wide, 1.6"/4cm high. The 8*4cm solid base is fully welded with the square arm and strong enough to provide the great weight capacity.PREMIUM QUALITY: Made of high stable quality iron material through fine welding, very solid and not easy to break, black textured paint finish to prevent rust, the surface is smooth and bright, durable and beautiful. Stable straight square pipe support, hollow rectangular structure, each pair of brackets can hold more than 60lbs when they are mounted on the wall.EASY FIT AND REMOVAL: Each set of brackets comes with all accessories you need. You can custom DIY Floating Shelves to your preference. These shelves can build a vintage and industrial style for any room. Making floating shelves in your bedroom closet, laundry room, bathroom, den, kitchen, family room, or dining room.PACKAGE INCLUDES: Shelf supports, screws, and wall mount anchors are included. Including 6 square supports, 24 long screws, 24 wall anchors, 6 short screws, that fit very nice and sturdy to keep your floating shelf brackets perfect.BRAND GUARANTEE: Included with your purchase is our manufacturers warranty. Please contact us should you have any questions about this or any of our other products.