4 Colour Ballpoint Pen – Multi-Ink Click Pen (Green Body) Stay organized and colorful with this versatile 4 Colour Ballpoint Pen. With a simple click, switch between four ink colors — red, blue, black, and green — making it perfect for note-taking, planning, editing, and highlighting. Its vibrant green barrel adds a fresh touch to your stationery collection while ensuring it stands out in your pencil case or on your desk.