Quantity : 2 pieces Color: Black Easy Installation: The bed frame is height adjustable with center support legs, just connect the joints and the adjustable feet for successful installation. Adjustable Height: The adjustable sofa legs can be Adjusted from 7inch to 13inch, you can adjust the height you want. Multiple Protections: The bottom of the adjustable center support legs are made of nylon to protect the floor, no noise and improve sleep quality. Material These furniture legs are made of sturdy metal which is very durable and will make the bed more stable Bed frame: The bed frame slats support the legs, which can effectively improve warping and bending of the bed and reduce damage to the cervical spine.