Function: Adjustable-height center support leg for bed frame adjusts from 5.1" to 9.6" to accommodate various bed heights, helping protect your bed and mattress from damage or sagging. Suitable for bed frames, center slats, and other furniture applications. Easy to install: Features a T-shaped foot design with no drilling required. When the bed frame has pre-drilled holes, align the bracket with the double holes, insert screws to adjust the distance, then tighten securely. When the bed frame has no holes, position the feet in a crisscross style, place the counter-piece on the corresponding bracket, clamp the bed frame, insert the screws, adjust the distance, and tighten for a secure fit. Material: Constructed from aluminum alloy with electrophoretic black coating to resist rust and corrosion, ensuring long-lasting durability. The thickened pipe wall enhances load-bearing capacity. The bottom includes a PVC pad that is non-slip and wear-resistant, protecting your floors from scratches and providing improved grip. Hardware included: 2 adjustable center support legs (5.1"–9.6" height range), 4 screws (2.48"), and 2 supplementary plates. All necessary components are included—no additional hardware store visits required. If any part is damaged or missing, please contact the seller for assistance. This support leg provides a cost-effective solution for extending the life of your bed base, wooden slats, mattress foundation, platform bed frame, or box spring. It effectively supports and evenly distributes the weight of heavy mattresses, helping prevent sagging and damage, ultimately saving on repair or replacement costs.