Mono Graph Multi/ 2&S (TOMBOW)
A multi-functional pen with black and red ballpoint pens, a mechanical pencil and a refillable eraser by Tombow.
The rotary function lets you write with a ballpoint pen with "Air Touch Ink," a low-viscosity oil-based ink that provides a superior writing experience. The attached MONO eraser twists from the top of the barrel and can be conveniently refilled. The pen also functions as a mechanical pencil with a 0.5mm lead.