Translucent sticky notes on the page adds annotations to books or mark important documents without stain book,additional notes,auxiliary words,drawing patterns,Bring you more convenienceMade of high-quality transparent PET material,water proof,non-toxic,odorless,transparent design,Writing on the book will not obscure the original content;Equipped with 3-color ballpoint pen for smooth writing,Handwriting is easy to dry,Does not stain hands and books