Each grid sticky note is made from 120g Notsu paper that feels substantial and resists bleed-through from most pens, markers, and highlighters. We’ve tested these ourselves and the paper behaves much like the cardstock used in the Notsu Index Card System.

Note: Sticky notes are notoriously prone to bleedthrough with fountain pens. While you may get some slight feathering with extremely wet inks and broader nibs, these Notsu sticky notes are among the most ink-friendly sticky notes we have found.

Made in China.