Note blocks - Adhere securely and remove cleanly, allowing temporary notes without residue. Suitable for classroom and office use on desks, notebooks, or folders. School office supplies - Color-coded system with easily distinguishable bold colors and colorful index labels. Quick visual differentiation helps organize materials and reduce search time. Colorful index stickers - Writable surface, easy to peel, and simple to stick. Convenient for labeling and rearranging files, notebooks, binders, and other classroom or office items. Use scenarios - In the classroom, use color blocks to mark subjects, priorities, or assignments on student notebooks and folders for quick identification. - In an office or school administration, label folders and storage bins with index stickers to improve document retrieval and organization. - For student study spaces, color-code notebooks, binders, and project materials to keep materials grouped by topic or class.