Transparent Practical Design: Compared with traditional sticky notes, the transparent material will allow you to still see contents underneath notes. Clear sticky notes on the page adds annotations to books or mark important documents without stain book. Proper Adhesion: Transparent sticky notes can self-stick well, the waterproof sticky sheet doesn't leave any glue residue, and these invisible sticky notes can be easily removed and repositioned without tearing book pages, perfect for book lovers Reliable Premium Material: The transparent self-stick notes are made of paper and PET, they are sturdy and firm providing a long time use and they don’t fade or wrinkle, these translucent sticky notes are also decently lightweight and easy to carry Multi-Pen Type for Smooth Writing: Transparent sticky notes have a smooth writing experience. Suitable for ballpoint pens, pencils, permanent markers, oil-based pens, not recommended for fountain pens and gel pens: Transparent sticky notes have a Smooth writing experience. Suitable for ballpoint pens, pencils, permanent markers, oil-based pens, not recommended for fountain pens and gel pens Wide Application: these clear sticky notes are the great planner, library books, Bible, Desk, Office, School or Teacher Supplies and a must-have for good back to school, Whether it's tracing diagrams and notes for school, or serving as reminders at work, they will be very convenien