Pilot Frixion Roller Ball Pen, Blue

Blue ink, erasable roller-ball pen with a 0.7 mm tip. Its thermo-sensitive gel ink writes smoothly and can be erased cleanly by friction (via the built-in eraser), making it great for notes, drafts, crossword/sudoku, diary entries or schoolwork. The pen has a comfortable rubber grip and a retractable tip — but because the ink can vanish, it’s not suitable for signatures or permanent documents.