Adjustable Function: The bookends are one-piece and adjustable with a maximum length of 50 cm / 19.6 inches and a minimum length of 10.5 cm / 4.1 inches. You can freely adjust the length of the bookends according to the thickness and number of books or folders. Separate Design: Divided into three compartments, suitable for different categories of books and file storage. Stably holds your books, magazines, DVDs, encyclopedias, binders, family albums, cookbooks, reference books, and more. And it is very convenient and easy to take out the book or put it back. Desk Organizer: A good helper for organizing your desk. Keep your books and folders in order and save more space for you to do other work or place other items. Also suitable for bookshelves, bedside tables, school, library, or wherever you need it. Great Gift: High-quality metal and rivet-fixed construction, durable for long-term use. A great gift for your family or friends who are passionate about reading. If you have any questions about the product, please do not hesitate to contact us. Instructions for Use: For better use, adjust the bookends to an appropriate length depending on the number and thickness of your books and fill this length as much as possible. If there are very few books placed, use other items on both sides of the bookends to lightly press them to make it more stable. Please read the adjustment instructions to know how to adjust the length of the bookends.