4 SIZES TO CHOOSE FROM: You can get 4 sizes of transparent sticky notes, which are 25x75 mm/1x3 inch, 50x70 mm/2x2.8 inch, 75x75 mm/3x3 inch, 70x95 mm/2.8x3.7 inch. 2 packs of each size, 50 sheets per pack, a total of 400 sheets. Different sizes will meet your demands labeling or adding notes in your books!TRANSPARENT DESIGN: Our clear sticky notes can be attached to books or documents without hiding important information, and you can easily see the text of the book covered by the sticky note. You can take notes on sticky notes so you don't leave ugly handwriting on the text.EASY TO STICKY: Our see-through sticky note set is self-adhesive, with good stickiness, no need for any glue or tape help, and can be pasted anywhere you want. And it removes easily without leaving an unsightly residue on the surface you stick it on.WATERPROOF & WRITABLE: Translucent sticky notes are made of PET material, waterproof. A smooth surface will give you a smooth writing experience. Pencils and ballpoint pens are recommended for writing. If you use markers, highlighters, gel pens, etc., please wait to dry before wiping.WIDE APPLICATION: Clear sticky notes are suitable for use in offices, schools, homes and other places. Can be used to leave notes or memos on books, fridges, chalkboards, whiteboards, laptops or anywhere else. It's the perfect choice for your studies, your work and your life.