Ink Free: These narrow highlighter strips are made of PET, which means they will not leave permanent ink and ink bleed through on like an actual highlighter or pen, you can freely highlight without defacing, damaging or devaluing your books Wide Applications: These highlight note strips are great for rent books, library books, textbooks, highlighting or sentences on documents and files and making easy and quick to spot and revise important information Stickiness: Half of each highlighter stirps are and they can be easily and repositioned, never worry about any highlighter mistakes again; enough to stay on exact sentences and leave without trace Sizes: This highlighter strip set includes 2 different lengths of strips: 1.93inch and 5.51inch, fit books and you can easily alter it into needed length; Each pad of strips has 5 different colors and you just need to carry one single and lightweight pad to classroom or library of bulky highlighter Colors: These highlighter strip set come in 33 different colors, perfect for daily reading and study needs and great for color coding or making a color theme, also you can share with your classmates, , colleagues and so on Colour:multicolor Material:pet Package Contents: 1820 X highlight strips Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.