How does the erasing work?

The ink is heat-erasable. Rubbing the mark with the pen's eraser tip creates friction heat that makes the ink clear. It does not rub off like graphite.

Will erased or written marks come back?

Marks can reappear in strong heat, such as a hot car or direct sun, and can vanish from pages left in heat. Keep finished work out of hot places.

Can I use these on fabric for sewing?

Yes, they are marketed for sewing marks. Test on a scrap first, since heat erasing on fabric depends on the material and the iron temperature.

Are refills available?

PATIKIL does not widely publish refills for this pen. Treat the six pens as the supply and expect to replace them rather than refill.

Is the ink green or light green?

The ink is light green, a softer shade than standard green. It reads clearly on white paper but is lighter than dark inks.

It is a standard gel pen, not a child-specific product, and carries a California Prop 65 warning. Supervise young children, who may chew the pen or eraser.