Oops is CARIOCA erasable ballpoint pen with heat-sensitive ink and ergonomic triangular rubber grip to improve writing position. Writing surface diameter 0.7 mm. Refills are compatible with the most important erasable pens. The retractable version is available in 3 colours (red, blue and black), the version with lid is available in 6 colours (green, turquoise, purple, red, blue and black), and the refills in 6 colours (green, toukesa, purple, red, blue and black). Not recommended for use in legal documents