There is a lot to love about this modular storage system. Mix Boxes by The Utility Collective are modular, eco-friendly and easy to put together. The set includes six boxes of various shapes and sizes that allow you to create many configurations based on your space requirements and storage needs. And what an attractive way to break visual boredom… The pieces are made in the USA without the use of formaldehyde or other harmful substances. The sides of each box interlock, creating a strong adhesive-free bond. And if you want to take your set apart and use segments of it as separate items of furniture, it can be done in minutes.