Adjustable from 7 inches to 13.5 inches (18 cm to 33 cm). The center support legs of the bed frame are designed to accommodate different bed heights to protect your bed and your from damage or sagging. The support legs of the bed frame are made of aluminum alloy, which is corrosion-resistant and will not rust or deform. High load-bearing capacity with individual weight capacity up to 250 lbs per leg. The bottom of the legs is equipped with PVC pads, which are non-slip and not easy to damage the floor. Easy to install, T-shaped legs, no drilling required, easy to install. When the bed frame has holes, directly use the bracket to align the double holes, place the screws to adjust the distance, and then tighten it. If the bed frame has no holes, fix the bed frame with the bed frame legs and auxiliary boards and tighten the screws. Color: Black Material: Metal Package Contents: 2x Adjustable Bed Legs 4x Threaded Rod 4x Nuts 2x Plate Only the above package content, other products are not