1.Polyester 2.Large Capacity: This storage box can make full use of the space in your house and store a lot of items. 3.Quality Materials: These Storage box is made of high quality linen and non-woven fabrics, which is safety, eco-friendly, no intolerable or other pungent odor. 4.Dust Proof: These fabric storage box is fine workmanship for long-last shape keeping, sewn-in handles are easy to grab and carry , decorative storage boxes with lids keep stuffs away from dust. 5.Easy Installation & Space Saving: These foldable storage bins features convenient installation procedures. It can be folded to save the space when you're not using it. 6.Stackable: The lid reinforced by density board and sides & bottom inserted by polypropylene board which makes it sturdy enough for the daily use. Closet bins for organization are sturdy enough to be stacked without losing their shape.