The product is a set of 4 floating shelf brackets, each measuring 3 inches in size. These hidden brackets are wall-mounted and have a nickel-plated finish. They are designed for easy installation and do not require batteries. Each bracket has a depth of 2.8 inches and weighs 0.42 kilograms. These sleek and sturdy brackets provide support for floating shelves, giving a modern and clean look to any room in the house.