Product Includes: You will receive 4 sheets of colored flag index tabs, 10 colors for each sheet, 80pcs for each color, 800pcs in total, each sheet comes with ruler, very suitable for your loose-leaf book. Make your learning more colorful, interesting and convenient.Premium Material: Our writable sticky index tabs are made of brand new PET material, safe and high quality. Waterproof, no odd smell, translucent design, easy indexing of every message. You can write smoothly on it, use it to write or mark, making your work or study more effective, help you save time and energy.Easy to Use: For your comfortable using experience, it is recommended to write with a ballpoint pen. The semi-adhesive design makes it easy to remove and reposition without traces. Our index tabs are easy to put in various folders due to PET loose-leaf shutters and frosted texture.Thoughtful Design: Multi colors are helpful for you to mark and highlight important information. You can use them decorate your books or papers. These color-coded index tags allow you to easily return and reference information, and it is also equipped with a side ruler, beautiful, practical and useful.Wide Application: These writable sticky index tabs are perfect for file classification, suitable for reading notes, books, magazines, folders, diaries, catalogs, documents and papers classification, widely used among students, teachers or office workers. The more you use them, the more you will like them.Colour: mixed colorMaterial: petPackage Contents:4 * Only the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.