Feature: 1. Transparent: No need to write directly on books and documents, you can see through the content and information of the pasted part, and the uncovered text is easy to extract. 2. Waterproof Material: Made of paper and PET, it sticks firmly, cleans well, and won't wrinkle and fade after long term use. 3. Removal Glue: Stick firmly and remove cleanly, can be repositioned, will not leave residue on the page, will not damage your books and documents. 4. Applicable Pens: A set of 50 clear sticky notes for a total of 500, can be used for writing with oil based markers, pencils, ballpoint pens, not gel pens or markers. 5. Applicable Scenarios: You can paste unseen notes anywhere you want, such as book notes, refrigerators, computers, desktops, blackboards. Specification: Item Type: Transparent Sticky Note Pads Material: Paper, PET Product Features: Semi Transparent Sticky Note Document Classification Index Marked with Key Tips. Package List: 10 x Bag of Transparent Sticky Note Pads(500pcs Total) Note: We recommend that you wait patiently for your handwriting to dry after writing.