Durable Metal Construction: The Qingzhou 5 inch high queen size metal box spring is built with heavy-duty steel, offering strong support for your mattress and ensuring long-lasting durability Quiet Design: Specially engineered for noise-free support, this box spring ensures a quiet, undisturbed sleep environment, even when moving or turning over Non-Slip Feature: Equipped with a non-slip design, the box spring keeps your mattress securely in place, preventing unwanted shifting and reducing the need for constant adjustments Easy Assembly: Designed for hassle-free setup, this box spring can be easily assembled without extra tools, allowing for quick and efficient installation even by one person Sleek and Protective Design: Featuring a stylish black fabric cover, the box spring blends seamlessly with any bedroom decor while also providing added protection for your mattress.