Made of high-quality metal material and rivets fixed construction, durable for long term use You can freely adjust the length of the bookends according to the thickness and quantity of your books or folders Divided into three compartments, suitable for different categories of books and files' storage Perfect to keep your books and folders in order and save more space for you to do other works or place other objects. Suitable for bookcases, bedside tables, school, library or wherever you need it Note: If there are very few books placed, please use other items on the both sides of the bookends to squeeze slightly to make the bookend more stable Material: Metal Size: As picture shown Package Included: 1 X Retractable Bookend Note: 1.Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures 2.Please allow slight dimension difference due to different manual measurement - Havendro Black Heavy Duty Metal Bookends Office Stationery Extensible School