[Super Quantity]: 10 sets of 2000 colorful sticky tabs for books, notebooks, folders, etc. It is convenient for you to mark, organize, summarize and search, and multiple colors can help you locate information and classify it [Safe Material]: The sticky tabs are made of PET material and special adhesive, non-toxic, odorless, waterproof and unbreakable. Guaranteed to write smoothly, both sides of the label can be written on [Re-adhesive]: The size of these sticky tabs is: 1.8in*0.5in, this label paper is moderately sticky, not easy to fall off from books, notebooks, computers, tearing it off will not leave adhesive residue, and it can be moved many times without losing its stickiness [Tips to improve study efficiency]: you can write the main knowledge points on the sticky tabs, through the key words associated with the whole chapter, easy to review. You can categorize the index stickers with different colors to make the notes more neat and save the time of searching [Wide Applications]: sticky tabs are not only limited to study and work, but can also be used in daily life. For example, shopping lists, to-do lists, etc. can be written on index stickers and stuck on the refrigerator or wall for easy viewing and updating at any time