This VEVOR 3-tier rolling library book cart is built for storing and transporting books, files, and other materials in libraries, offices, schools, and home spaces. Its carbon steel and cold rolled steel construction supports heavy loads while maintaining a stable structure. Silent swivel casters and two locking wheels help it move smoothly and stay secure when parked. The double-sided W-shaped shelves and side compartments provide organized storage for books, folders, and tablets. A rust-resistant coating helps protect the cart for long-term daily use.