Package Includes: 4 x Shelf Brackets (145x 83 x 50 mm). Solid One-Piece Structure: Each individual bracket is cast in one piece and features a reinforced right-angle design, making it more stable and will not sag even after a long time. Solid Steel Material: The L-shaped shelf brackets are made of 2 mm thick solid steel, each pair can hold 120 kg/260 lb on concrete walls. To ensure full load capacity, it is recommended to install one bracket every 50 cm. Decorative and Practical: The matte black painted surface protects the brackets from oxidation and gives them a stylish appearance. Use these black shelf brackets virtually anywhere for a modern look and extra storage space. Wide Application: The heavy-duty shelf brackets can be used to build a bookcase, kitchen shelf, garden shelf, exhibition stand, and much more. Perfect for homes, offices, hotels, restaurants, etc.