Quantity: Including 4 self-locking hinges, when you don't use a desk or workbench, just press the latch and fold it down to get more space. 75mm*60mm*55mm/3*2.4*2.2 High quality material: Made of high quality metal materials, the surface is electroplated, which is not easy to rust and the design makes it match your home style well. Easy to fold and self-locking: For added security, these brackets have a spring-loaded forced latch that can be locked in the open position to ensure stability. Special Design: With solid construction design, each bracket could hold 226kg capacity, be able to support heavy duty furniture, 90/0 adjustable. Multi-function: suitable for folding table / chair, furniture legs, wooden folding bed, outdoor table, desk, DIY platform.