Sturdy and Durable: The black folding shelf brackets, made of high-quality sturdy metal with a black painted surface, can well resist daily scratches, corrosion, and tarnishing. With a sturdy triangular structure and a solid support rod, it can hold up to 330 lbs/150 kg and ensure long-term use. Space Saving Master: Foldable design, you can press the release button to fold the bracket, the workbench will be close to the wall to save a lot of space, practical and convenient, perfect for using in a small room, ideal for home, office, RV, garage, or warehouse to help build an extra workbench. EASY TO INSTALL: The folding shelf bracket comes with mounting accessories, the short support arm has 3 expansion tube holes and long screws to fix the bracket to the wall, and the long arm is fixed to the wooden board. (Tip: The larger hole of the long support arm is used to screw the screw into the hole of the upper part of the short support arm.) Multiple DIY Uses: The 90-degree angle locking