EXTRA MATTRESS RAIL STOPPER A combination of mattress sliding stopper and headboard. It prevents the mattress from sliding off and creates extra storage space for your nightstand MATERIAL Our mattress frames are made of thick material, not easy to deform and rust. Suitable for any mattress AVOID UNNECESSARY TROUBLE Add a metal plate to lock the bed frame while protecting your bed frame from scratches. You can move it whenever you need UNIVERSAL DESIGN The mattress mounting bar is adjustable in both width and height. You can adjust it to your suitable height for most bed frames Use scenarios Scenario 1: In bedrooms without a built in headboard or with limited nightstand space, the rail stopper keeps the mattress secured and provides additional storage area near the bed. Scenario 2: In homes with multiple mattress sizes or frequent room reconfigurations, the adjustable width and height ensure compatibility with most bed frames without needing hardware. Scenario 3: For wooden or delicate bed frames, use the metal plate to lock the bed frame and protect against scratches; the plate can be moved as needed without permanent changes