FriXion Ball refills for erasable pens let you write, erase, re-write and create clean and polished documents without damage or messy eraser residue. Whether youre taking notes, making lists or illustrating designs, these innovative pens are ideal for students, teachers and professionals alike. The 0.7 mm fine pen point size strikes a balance between fine and bold lines, making it perfect for everyday writing needs. Archival-safe and acid-free black ink is formulated to be long-lasting and fade-resistant, ensuring your documents last for a long time. Plus, FriXions the only pen authenticated by the nations leading Science, Technology, Engineering and Math (STEM) education organization. With this incredible range of premium erasable writing instruments, you hold the power of infinite creative possibilities in your hand.