Popular, well-designed cart seems to be everywhere. Large capacity: 3 shelves, hooks and holders for all cleaning equipment. Ease of use: 8" non-marking rear wheels, 4" swivel wheels in front. Bottom shelf securely holds Bucket/Wringer or 32 Gallon Uline Trash Can . Replacement Bag available. ULINE offers over 30,000 boxes, plastic poly bags, mailing tubes, warehouse supplies and bubble wrap for your storage, packaging, or shipping supplies.