ParKoo Gel Ink Refills Compatible with FriXion and Friction Erasable Gel Pens, 0.5 mm, Black & Blue Ink, Pack of 20

Pack of 20 erasable gel ink pen refills, made to fit FriXion and friction retractable erasable clickers and capped pens of ParKoo, Pilot and another named brand New Thermo-sensitive ink will disappear with friction using the rubber eraser on the pen with no residue and no tearing of paper. Extra fine point (0.5mm), color: 10 x black, 10 x blue Water-based Nontoxic ink, acid-free, non-bleeding, heat erasable To extend the life of your favorite erasable pen. HEAT ERASABLE REFILLS   Unique Thermo-Sensitive Gel Ink formula disappears with heat or erasing friction. Smooth writing gel ink, tip: 0.5mm, 10 x black, 10 x blue. Nontoxic ink, acid-free, non-bleeding, heat erasable. Extend the life of your favorite ParKoo or Pilot FriXion Erasable pen. TEMPERATURE SENSITIVE INK If the refill or your writing is exposed to extreme temperature over 60℃, the ink will disappear. Cool the refill or your writing in freezer to at least -10℃, the ink will reappear. Use these erasable