New, natural colors! We already use FriXion technology in our highlighters. Highlight, erase, and highlight again as many times as you want! Simply erase the highlighting using the heat generated by friction, leaving no marks and without damaging the paper. Ready to use immediately (no shaking or pressing required). Great for temporarily marking maps or highlighting notes and books. Line width: max. 3.3 mm. Not recommended for highlighting text written with other FriXion pens. Do not expose to direct heat. Made from 50% recycled plastic (excluding the ink cartridge).