Extra mattress rail stopper and headboard A single unit that prevents the mattress from sliding off and also serves as a headboard, creating extra storage space beside the bed for essentials. material Thick, durable construction that resists deformation and rust. Suitable for use with any mattress type or size. Secure and protect Includes a metal plate to lock the bed frame in place while protecting the frame from scratches. The plate is movable as needed. Universal adjustable design The mattress mounting bar is adjustable in both width and height, allowing a fit for most bed frames. Use scenarios Small bedrooms and limited nightstand space: use as a headboard and additional storage surface without needing separate furniture. Rental rooms or guest rooms: easy to relocate between beds or frames without tools or damage. Varied bed setups: adjust width and height to align with different mattress heights and frame dimensions for a secure fit.