This mattress slide stopper set includes 4 pieces, which is enough to meet the anti-slip needs of a single bed. You can install them on the four sides of the bed frame respectively, forming a stable "protection circle" for the mattress. Made of high-quality metal material, the mattress retainer bar is thickened and reinforced, with strong load-bearing capacity and not easy to deform or break. Compared with plastic stoppers, the metal stabilizer has better wear resistance and can be used for a long time without being damaged by friction between the mattress and the bed frame. The mattress holder adopts a non-slip structure, which can closely fit the mattress and the bed frame. When you turn over or the bed, and baffle can effectively prevent the mattress from sliding, shifting or slipping. This mattress slide stopper is widely suitable for different types of , including metal , wooden and adjustable beds. Whether your mattress is soft or hard, it can be perfectly matched. The installation process of the mattress stabilizer baffle is simple and fast, no need for complex tools or professional skills. Just place the retainer bar of the bed frame and fix it according to the instructions. Color: Black Material: Metal Package Contents: 4*Metal Mattress Slide Stopper Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.