Material: The bed slat support is made of new high-density polyethylene, which is strong and durable. Black wear-resistant, suitable for all types of slatted basesSize: 55mm width x 9mm height (inside). Ideal for installing box springs 53mm to 55mm wide and 7mm to 9mm thick. Please check the size of the slats before ordering.Installation: Each bed base bracket has two pins that fit into pre-drilled holes on the side rail and center rail of the bed frame. It fits any bed frame rail with a width of approximately 36mm - 38mm / 1.42 - 1.5. The pin depth is 15mm/0.6 inch and the pin hole diameter is 9mm/0.35 inch.Convenient Replacement: Bed slat brackets are great for replacing damaged or missing slat brackets, saving you money and allowing you to easily replace damaged or missing slat brackets missing. They are repair and replacement parts for metal beds, leather beds, wooden beds, sofa beds, bunk beds and more.INCLUDES: This package includes 24 single-end slat brackets