Size of Shelf Brackets: Overall dimensions: 100 x 80 x 26 mm / 3.94 x 3.15 x 1 inch. Includes 4 concealed floating shelf brackets in black, with 8 long screws and 8 short screws. Loading Capacity: Each two-piece metal corner bracket combination can support up to 20 kg. This sturdy bracket is ideal for industrial-style decor. Design: Triangular shape with a hidden design that mounts under the shelf for a clean, space-saving, and minimalist look. Multi-Purpose: Suitable for floating shelves, cabinet supports, furniture reinforcement, and room dividers. Perfect for displaying books, vases, photo frames, and other small household items. Sturdy Material: Made from high-quality iron for durability and wear resistance. The black powder-coated finish provides excellent scratch resistance and long-lasting appearance.