Features: Open the book and clamp the book at the top or bottom to fix the number of pages for easier reading. Even after using the book page holder, book content can still be seen. A great gift for teachers, librarians, bookworms, bibliophiles, or anyone who loves reading books. You can do other things while reading without worrying about the closed book. Suitable for teachers fix books, clip documents in office, reading books, fix music scores, outdoor reading, read recipes in the kitchen and so on. Specifications: Component: ABS Length: about 12cm/4.72' Color: 6 Kinds Optional Package Includes: 1 Pc Book Clip Holder note: Please allow 1-3cm errors due to manual measurement. Due to the difference betweeen different monitors,the picture may not reflect the actual color of the item.