This storage are made of quality linen fabric and thick cardboard that durable and sturdy. Besides, it comes with a metal ring to reinforce structure. Furthermore, the stackable and foldable design of this bins for space-saving and make full use of your room space. And the lidded fabric boxes has large storage space for toys, books, underwear and other items. It's worth mentioning that the lid with built-in magnets are easy to attach to the upper box to keep opening, and allowing easier access to inner contents. And this durable yet lightweight storage bins with handles is easy to carry and suitable for home and office.