|Global Product Type||File Folders-Top Tab|
|File Folder Type||Top Tab|
|Folder Material||Available in: 11 pt. Manila Stock or 11 pt. Stock|
|Color(s)||Available in: Assorted or Manila|
|Assortment||Available in: 10 Each: Blue, Green, Orange, Red or Yellow|
Thank you for your question about Pendaflex Ready-Tab File Folders.
The tabs of these folders are made from poly laminate, i.e. plastic. They work best with markers, which you've discovered through trial and error. They're not really designed for erasing, or for pencil or pen ink marks.
You might try an erasable marker, such as EXPO® Vis-à-Vis® Wet Erase Marker. The ink is formulated to wipe away clean with just a damp cloth, so you can "erase" the tabs without damaging the folders. I've linked the fine point black marker set, but they are available in a range of colors, tip sizes and quanitities.
Hope this solves your problem!