"Twin XL 4-Inch Box Spring - 1500lbs Heavy Duty Metal Foundation, White Cover, Non-Slip, Noise Free, Easy Assembly"

Compatibility Profile Design: 4 inch box spring elevates your mattress,suitable for different types of mattresses, including innerspring mattresses, memory foam mattresses,latex mattresses,etc Twin XL box spring only Cover Included: Box spring with fabric cover, elastic band, shrink and wrinkle resistant, keep mattress from slipping, easy take off for cleaning and assembly Quiet and Noiseless: This mattress foundation adopts a silent design, each pole and support frame is seamlessly welded at both ends, ensuring you a comfortable sleeping time Easy Assembly: All parts of the box spring 4 inch, assembly tools and clear instructions are. packed in a compact box, simply follow the instructions for quick assembly Box Spring Only: A bed base or bed frame is required to support this box spring and is sold separately, no bed base is included in the package, or this box spring has a sturdy metal frame construction that you can use as a bed frame to support the mattress.