1.DURABLE AND STRONG - This bookcase is made of high quality aluminium alloy, which is strong, waterproof and rust-resistant to ensure durability. It has 2 adjustable and stable table clips to keep books open. The soft rubber nibs prevent paper damage and make it easy to flip through. 2.MULTIPURPOSE USE - This bookshelf can be used not only for teaching books, recipes and other books, but also as a laptop stand. This bookshelf can be folded into different shapes according to your needs. You can use it in office, kitchen, sofa or bed. It can be used by both children and adults. Suitable for books and book stands. 3.FOLDABLE AND PORTABLE - Our folding book stand measures 38cm X 26cm X 4cm. The foldable, lightweight aluminium design fits easily into a drawer or alongside your favourite books. Designed to be lightweight and portable for reading and working. 4.MULTIPLE HEIGHTS AND ADJUSTABLE ANGLES - Adjustable bookshelves with different adjustable angles and heights allow you to maintain proper posture and better protect your spine health. 5.Each 15 is a gear setting. You simply press a button on the lightweight metal frame to adjust the height and angle. The ergonomic bookcase eliminates eye, neck, back and shoulder strain or pain.