1. quality metal material: The underbed box with wheels is crafted from upgraded metal tubes and breathable Oxford fabric, safeguarding your clothes from dust and moisture. Unlike ordinary underbed storage bags, our underbed storage base features metal tubes for loadbearing capacity, meeting your longterm storage needs. 2. Large capacity design: Dimensions of the underbed storage on wheels are 80 cm x 43 cm x 17 cm. The 17 cm height is tailored to fit most underbed spaces, while the zippered underbed storage bag maximizes this area to keep your belongings neatly organized. 3. 360degree rotating wheels: Equipped with 2 reinforced handles and 4 swivel wheels, the underbed storage box glides effortlessly over floors or carpets. Two of the wheels include a locking mechanism—simply press gently to keep it stationary when needed. 4. Clear window design: The front of the underbed storage features a large transparent PVC window, allowing quick visibility of contents without unnecessary searching. The twoway zipper ensures smooth operation, and cleaning is easy—just wipe with a damp cloth and air dry.