FriXion Synergy Clicker erasable pens let you write, erase, re-write and create clean and polished documents without damage or messy eraser residue. Whether you're taking notes, making lists or illustrating designs, these innovative pens are ideal for students, teachers and professionals alike. Plus, FriXion's the only pen authenticated by the nation's 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.