Description: 【Secure and Adjustable Design】: Nonslip Mattress Gaskets feature a safety lock mechanism and adjustable width to provide reliable mattress support while protecting your furniture surfaces 【Easy Installation and Reusability】: Mattress Slide Stoppers are equipped with wing shaped knobs and reusable fasteners for smooth setup, easy removal, and convenient seasonal mattress adjustments 【Stable and Noise Reduction Functionality】: Utilizes anti slip clips and sturdy support bar for bidirectional fixation, minimizing movement and reducing noise during use 【Durability and Safe Construction】: Adjustable Mattress Holders are made of iron with a black coating to prevent damage from friction, plus rounded safety edges to ensure user protection during handling 【Compact Set of Two】: Each package includes 2 adjustable anti slip mattress gaskets, each measuring 8cmx6cm, offering a practical solution for keeping mattresses firmly in place Specification: Material: Iron Color: Black   Size Chart: 8cmx6cm/3.15inchx2.36inch Package Includes: 2 Non Slip Mattress Gaskets Note: Please allow slightly errors due to manual measurement and different monitors.