Large Size: Heavy-duty powder-coated design narrow enough to countersink behind thin and thick shelves. Rod is 8 inches long with 1/2 inch diameter. Backplate is 5.9 inches wide and 1.0 inch in height, Recommend for floating 8.5-12 inch deep, 1.5 inch thick wooden shelves in home, kitchen, bathroom, bars, office, farmhouse, or anywhere needs decor and organization,Heavy Duty Support: Per pair of blind shelf brackets has an up to 100lbs weight capacity when placed on studs or drywall. They have no problem holding shelf with books, kitchen dishes, large mantles, plants, decoration stuffs on it,Premium Quality: Every single bracket is welded by hand in-house and quality checked with a 90 degree right-angle. These shelf brackets are made of 100% solid steel and are powder coated to be rustproof for long time use. Each bracket is guaranteed to be straight, square, and of exceptional quality,Amazing Illusion: Gain practical storage space while maintaining a beautiful and elegant modern look. Once installed, these concealed shelf brackets are completely hidden from view, creating the illusion of a floating shelf. Typical shelf depths are 10" for kitchen, 8-12" for living room/bookshelves, our 8 inch large size shelf brackets will handle both with ease,Easy Installation: No special skills are required to mount these floating shelf brackets on the wall. Included are 24 attachable screws, 24 drywall anchors, 24 brick concrete anchors that fit very nice and are sturdy to keep your floating shelf brackets perfect