Optimal Size Secure Fit Mattress Slide Stopper:Measuring 10.2" x 3.5" x 3.07", this mattress sliding stopper is designed to keep mattress from sliding. Its low-profile yet ample length acts as a reliable mattress retainer bar, ensuring your bed stays firmly in place. Heavy-Duty Metal Mattress Holder for Bed Frames:Constructed from cold-rolled steel, this mattress holder for metal bed frame resists bending and rust. It serves as a durable non slip mattress gripper, offering strong impact resistance for long-term stability. Easy Install Mattress Stopper with Included Hardware:This mattress stopper comes with pre-drilled holes and screws for tool-simple setup. Whether used as mattress stoppers to prevent sliding on wooden or metal frames, installation is quick and repositionable. Versatile Mattress Slide Stopper for Multiple Bed Types:Compatible with various frames including metal, wooden, RV, and adjustable bases, these mattress slide stoppers function as universal mattress retainer bars that fit mattresses up to 8 inches thick. Thoughtful Design Non Slip Mattress Gripper:Engineered with a textured surface and built-in screw openings, this non slip mattress gripper increases friction while protecting your mattress. It's the subtle yet effective solution to keep mattress from sliding all night long. Specifications: Product Name: Mattress Slide Stopper / Retainer Bar Size: 260 x 78 x 90mm (10.2" x 3.07" x 3.5" L x W x H) Material: Cold-rolled steel Color: Black Package Contents: 6*Mattress Slide Stoppers 1 Set of screws