Size:7.7"x6"x4"inch,FLEXIBLY ADJUSTABLE STRETCHY: It can be adjusted to be maximum 19"-20.1"inch .Stretchable design, save space.with Pen Holder Telescopic design, increase storage capacity and save space.Adopting stiffener design, higher strength and more stable. Made of high quality metal, durable wear-resisting.Hanging small box, storing pens, rulers, compasses and other small objects. Not messy, increase beauty. Use it to hold up books, magazines, dvds, hardbacks, games, comic books, catalogs, text books, binders, cookbooks, reference books, albums, and more Will be amazing present If you have any questions about the product, please contact us, our professional customer service team will solve the problem for you as soon as possible.