Quality: The sticky notes are made of high quality PET material, non-toxic and odorless, smooth writing and waterproof, just take it easy to use. ^ Unique Design: The translucent stickers will not cover the information, highlight the important part, keep your page tidy and not messy. ^ Package Includes: The package includes 1120 pieces, 7 colors. The 7 different colors allow you to color-code important information in your documents, readers, and books. ^ Removable: Half of each index tab has a strong adhesive, which can be easily stuck and removed without leaving any traces or causing any damage to the book. ^ Multipurpose: The bright, colorful flags make it easy to mark and highlight important information, perfect for critical items, organizing files, reading notes, or color-coding.