Features: Enhancing your study and reading with these colored PET label adhesive notes page markers, featuring strong adhesive ensures clear visibility and repositioning without residues for efficient organization. Water resistant adhesive PET label is writable and re-stick. Recommend write with colored pencils, ballpoint pen, highlighter, oil based marker. Not suit for fountain pen, water color marker, dip pen and gel pen. Suitable for students highlighting textbooks, office workers managing files, and teachers organizing lesson plans with color coded indexing, combining aesthetic appeal with practical functionality in academic, professional, and creative work project. Great for marking pages in novels, tagging urgent documents in binder folders, leaving reminders on laptop, planner, calendar, novels, fridge, or creating study notes in notebook journals without obscuring underlying text. 20 Sheets per color, 100 Sheets per pack, 1000sheets in total. Works great as adhesive notes, labelling sticker, file labels, reading notes, page marker, highlighter strips, reading bookmarks, labelling codes, reading sticker, and more. Specifications: Component: PET; Adhesive Color: 5 Color As Picture Shown PET Note Size: Approx. 4.5x1.2cm/1.77x0.47in Weight: Approx.30g Package Includes: 1000Sheets Colored PET Label note: 1.Please allow 0-1cm error due to manual measurement. Be sure you donot mind before bid. 2.Due to difference between different monitors, the picture may not reflect the actual color