Material Ketiee Letter is made of high-quality stainless steel and steel, with polished and baked surface, which is strong, smooth, rust-proof and not easy to break. The Foldable Portable Bookkeeper Reading Stand quickly folds up for convenient storage. You can carry and store it in your backpack for outdoor activities and it won't take up much space when not in use. 6 adjustable positions Length: 21.1 cm, Width: 16 cm. Ketiee bookshelf with different notches on the removable backrest, allowing the height and angle to be adjusted as needed. Ergonomic design The metal adjustable reading stand adopts ergonomic design, which can reduce the pressure on the head and neck and effectively correct children's bad reading posture. Ketiee lettering provides space for cookbooks, music books, magazines, textbooks, drawing paper, documents, tablets and more, and can also be used in kitchens, schools, offices, libraries, dormitories and more.