Universal Rolling Cart & Organizer Bag is the perfect solution for carrying school supplies, files, classroom equipment & more. Double rails lock the sides securely in place to prevent items from falling out. The telescoping handle extends to 23"" from the cart & locks in three positions for easy mobility on rubber wheels. The saddlebag-style canvas cover has more than 30 storage compartments with zipper & hook-and-loop extensions to efficiently manage your supplies. The cart accommodates letter / legal-size folders, hanging files, & binders.