1. Stable and Secure Keep your mattress in place with this set of 6 nonslip metal spacers. Insert them into the edge of your bed to provide stability and prevent slipping, ensuring restful sleep without the need for daily adjustments. 2. Fit The adjustable width of these mattress stoppers makes them suitable for a variety of bed frames. With a maximum adjustable width of 96.5 cm, they can easily fit most bed frames. 3. Scratch Protection Protect your bed frame from scratches by adding a metal strip that securely holds the mattress in place. The countersunk halfround head screws are designed to minimize scratches while providing extra durability and protection. 4. Easy Installation Assembly is quick and hassle with the included roundhead hex socket screws and small wrench. Tighten and remove with ease, making installation simple and convenient.