Mail carts are used to organize and deliver mail, packages, documents, and other materials and supplies in office mail rooms, libraries, and similar settings. These wheeled carts are made from wire mesh, which allows air to circulate through the carts and keeps items inside the carts visible. The carts' baskets can be removed to make it easier to sort and load items in the carts, and adjustable dividers can be placed in the baskets for organizing items of different sizes in the carts.