FriXion Point Knock Biz - 0.4mm pens feature our favorite synergy tipped FriXion pen in a sleek and professional pen body with subtle marble colors.
- FriXion eraser hidden under twist off cap
- Click from pen clip
- Black ink
- Refill available
More FriXion pen colors and options here
The FriXion ink is erasable by rubbing with the tip of the pen to create the frictional heat needed for the ink to disappear. Since the ink reacts directly to temperature, it is recommended not to leave it under direct sunlight or anything that's hotter than 140 Fahrenheit.