Constructed with 4 casters with 360° rotation and 2 of them are lockable. Rolling design allows easy movement in your workplace and locked in place for secure use when it's stationary. Movement of the cart becomes easy even in limited space This file storage cart is only 5.9 inches wide. With the slim construction, the rolling paper file cart fits easily in narrow spaces in your office while still meets all needs for documents and files storage and organization With 5 tiers shelfing baskets, the rolling book cary provides ample storage space while allowing you to keep your necessities close. Put your pen holder, water cup and small utilities on the top. And all magazines, notes, evelopes, books, files, documents, bills and papers on the underneath 4 tiers Rolling organizer cart can be an file or paper sorter organizer for office, utility organizer for kids' picture books in nursery, book shelf for teachers in classroom, and art supply organizer for artist students to organize drawing paper and paint tools. Great for home, office, classroom, dorm organization The rolling book cart with wheels is easy to install, all parts are included. It provides enough storage space for your daily life, optimize space utilization, and make the messy room tidy, a must have for your home / office