- Flexible Size Convertible Cart and Tote Shoulder Shopping Bag - Has a zipper in the middle of the bag, which can make the bag a large shopping cart or a small shopping bag to meet your shopping needs when going out. - Foldable wheels that can be switched between shoulder bags or extended as a shopping trolley. It will stand up when fully extended. This design makes shopping easier. Wheels roll smoothly, quietly, without fraying or damaging the floor - Material: made of oxford fabric, soft and breathable, and easy to clean.