Material: Made of galvanized iron; Item size: 106 x 54 x 32mm (4.17"x2.13"x1.26") Strong load capacity: The material thickness is about 2.5mm (0.098") and the maximum load capacity for 2 brackets is about 225kg (500lb) Easy to install and operate: You only need to fix the brackets with screws during installation. Once installed, simply press and hold the middle latch to fold or unfold the table extension panel Suitable for places where space limitations or flexibility are critical, such as kitchen, laundry room, retail and grocery stores, boats, warehouses, industrial, garages, maintenance storage, office and residential storage. etc. Folding brackets with locking mechanism when folding and unfolding; Package included: 4 pieces folding brackets with 32 pieces mounting screws