1. The folding bracket is made of galvanized metal iron, which can be easily adjusted regardless of family style. Because of their size, they are also not visible most of the time. 2. When these brackets are attached to furniture legs or narrow plain work surfaces, the effect will be better. If the feet are not supported, the greater distance will reduce the carrying capacity. Actual conditions of use usually result in bearing capacity below laboratory conditions. 3. These brackets are easy to fold and self-lock for added security. They feature a spring actuated \"forced latch\" that can be locked in the open position to ensure stability. When not using a desk or workbench, simply press the latch and fold down for more space. 4. Large creative mount in a small space is very suitable for space-constrained and\/or flexible applications such as kitchen, laundry, retail\/grocery store, RV, boat, warehouse, industrial, garage, maintenance warehouse, office\/living space. Put them on the legs or table to fold the legs on the DIY table or bed, fold the items on the table, fold the extension of the table, etc. 5. The physical parameters: Material: metal iron. Color white. The package includes: 4 brackets