For Glass Shelves Up to 3/4" Thick For Wood Shelves from 1/8" to 15/16" Thick For Shelves Up to 10" Deep (Protrusion from Wall) Adjustable Shelf Brackets are made of durable die-cast metal and powder-coated finished for a beautiful look. Maximum recommended weight per pair of shelf brackets correctly installed is 44 pounds. Finish: Brushed Nickel Set Consists of: 2 brackets, 2 screws, 2 caps and 2 cushions.