Best product of amazon

These transparent post-its are the Best I have ever bought. With them you van write anywhere without worrying about ruining the book. Plus, you don't even notice they're on, and if you get tired you van take them off without any problems. The ink in the pens does not expand, and gives you confidence to write with all the types of pens you want. Without a doubt, One of the Best purchases of my Life in terms of taking notes or underlining books. If you are looking for something like this, don't hesitate to buy it