1.Material:Iron2.Easy To Fold & Self-Lock: For added security, these Foldable brackets have a spring-activated "forced lock" that can be locked in the open position to ensure stability. When not using a desk or workbench, just press the latch and fold it down to get more space3.Adjustable Range: Adjustable to 90°/ 0°, can easily adjust the sofa bed, sofa or other furniture, folding self-locking table frame, elastic hinge table leg frame4.Heavy-Duty Folding Shelf Brackets: The maximum load can reach 120kg/265lbs. Folded Size: 2.8 x 1.8 x 1.2inch / 7.2 x 4.5 x 3.1cm(L*W*H), Unfolded Size: 2.6 x 1.8 x 2.4inch / 6.6 x 4.5 x 6cm(L*W*H)5.Widely Used: The stand is very suitable for placing them on the legs or table to fold the legs to the DIY table or bed, folding items on the table, folding the extension of the table, etc