Protect your mattress or box spring of any standard size—from twin and full to queen and king—with the Pen+Gear Universal Mattress Bag. It's an essential item for moving, completing a renovation, or placing items into storage. Suitable for any renter or homeowner, this clear plastic bag provides reliable protection from dirt, dust, moisture, and other common debris. The mattress bag features a large opening, making it easy to slide your mattress inside. To complete the process, fold over the excess plastic and secure with tape (sold separately) for a tight seal.