Grabie® Erasable Gel Pens, 36 Colors Make 1 Pack, Multicolor

Manufacturer: Grabie. Color: Multicolor. Ink Color: Multicolor. Simply place them in the freezer (around 0°F / -18°C) for a few hours before using, and they should work. Safe, Non-Toxic & Kid-Friendly – Made with non-toxic materials, these pens are safe for kids and adults alike.