Monteverde Invincia Executive X3 Ballpoint Pen

Dial in 3 different functions: A black ballpoint pen, a red ballpoint pen, and a 0.5 mm mechanical pencil with a built-in eraser. A simple twist of the cap advances and retracts the desired mode. Click the top button in pencil mode to advance the 0.5mm pencil lead. The eraser is housed under the top button.