Brand: PILOT Color: Bordeaux Brown Lead Diameter: Pen is 0.7mm, Mechanical Pencil is 0.5mm This is a multi-function writing instrument with a 4-color ballpoint pen (black, red, blue, green) and a mechanical pencil. The ballpoint pen uses Acro Ink, providing a smooth writing experience. Some of the ink cartridges are empty, so you may need to replace them yourself. Please be aware of this.