Fangrui Product Details Ink Free: These Narrow Highlighter Strips Are Made Of Pet, Which Means They Not Leave Permanent Ink And Ink Bleed Through On Pages Like An Actual Highlighter Or Pen, You Can Freely Highlight Without Defacing, Damaging Or Devaluing Your Books Wide Applications: These Highlight Sticky Note Strips Are Great For Rent Books, Library Books, Textbooks, Highlighting Text Or Sentences On Documents And Files And Making Them Easy And Quick To Spot And Revise Important Information Stickiness: Half Of Each Highlighter Stirps Are Sticky And They Can Be Easily Peel And Repositioned, Worry About Any Highlighter Mistakes Again; Enough Sticky To Stay On Exact Sentences And Leave Without Trace Sizes: Fit Most 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 Pad To Classroom Or Library Instead Of Bulky Highlighter Pens Assorted Colors: For Daily Reading And Study Needs And Great For Color Coding Or Making A Color Theme, Al