These shelf brackets are made of iron, sturdy and durable, and can withstand heavy usage. Thick metal ensures durability and a smooth surface without rough edges. Easy to install with pre drilled holes and complete hardware screws, making installation effortless. These brackets are designed for quick and easy installation, making them an ideal choice for DIY enthusiasts and professionals. These brackets are very suitable for making DIY shelves and saving space, suitable for various occasions such as homes, bathrooms, shops, garages, and businesses. They provide strong support for items such as books and potted plants. Integrated structural design: The welding free integrated molding process enhances strength, while the L-shaped right angle design brings a clean and modern visual effect. The rounded corners prevent scratches, and the simple design adds a touch of elegance to your space. You will receive 2 brackets (5.9 x 5 x 0.8 inches), 8 expansion tubes, and 8 screws. You don't need to purchase additional screws, you can install and use them immediately, ensuring a durable solution for your shelf needs.