Adjustable Size 4.0-18.3 inch x 5.7 inch x 7.5 inch, the adjustable bookend can be expand to 18.3 inch and contract to 4.0 inch to meet various needs, you can easily remove one item without dislocating the others.Accessory Pen HolderThere is a pen holder accessory on the side of the bookend, which matches perfectly with the bookend and can meet your needs for storing pens.Unique DesignDifferent from ordinary metal bookends, our bookends can effectively prevent slippage and prevent books or discs from falling backward, protecting the things you need to store, especially valuable items. Adjustable books have three grids in total, so you can hold different types of books, comic books, recipes, and DVDs. The simple decorative design of the bookshelf looks very modern, which can make your space feel modern and stylish.Rugged and DurableThe book holder is made of high-quality iron material with a smooth surface to prevent books or fingers from being scratched. It can store large and heavy books or notebooks. It is suitable for bookshelves, offices, homes, schools, libraries.Brand Service24 months after-sales service gives you a good shopping experience. If you have any problem, please contact us, we will solve it for you and make you reap satisfaction. (zhongchengdaye)