• Don't Let the Fun End: with These Refills You Can Use Your Bic Gel-Ocity Illusion Gel Pen Year After Year • Write, Erase and Rewrite: The Thermosensitive Ink in the Cartridge Fades in the Air When Rubbed with the Pen Cap • Gel Ink Offers Vivid Colors and Superior Smooth Writing • This Blister Pack Contains 3 Refills in the Standard Red Color • Refilling the Pen is Very Simple: Just Unscrew it and Replace the Empty Cartridge with a New One After Removing the Cap