1、Strong Construction: Book shelf holders are made from a selection of sturdy iron, with advanced stamping, a classic black color, enough to keep all your books, CDs, DVDs neat and upright.2、Anti Slip Foam Pads: There are 4 antislip foam pads on the bottom of each bookend to prevent the bookends from sliding, they allow you to move the bookends without scratching your desk.3、Slim Design: The slim design doesn't take up valuable space on your bookshelf or desk and keeps your books tidy. Works with books, movies, DVDs, magazines, video games and anything you want to stand up to.4、Anti Static Paint: Super glossy and flat high quality painted appearance and rounded edges ensure your shelves or books will not have any scratches or scratches.5、Adjustable: Book shelf can be adjusted according to the size of the desktop, suitable for any combination of various forms, adjusted to the ideal combination, elegant and delicate, personalized and practical desktop books are easily stored, and the books are stable and not easy to fall.