Colorful storage cube is built rugged to withstand tosses, tumbles and heavy loads. It is premium storage for any situation. Lid and walls are transparent. Cube carries up to 50 lb. It holds letter-size or legal-size hanging files and folders with a capacity of up to 3500 sheets of letter-size paper or 3000 legal-size paper. Modular design allows custom-stacked storage solutions. Cube can be stacked with other Storex Cubes in any direction. It also stacks and interlocks with Storex Premium Crates (sold separately). The storage cube is PVC-free and BPA-free.