The Stalogy 4 Functions Pen has three colors of smooth ball-point ink in .5mm blue, black, red, and a .5mm mechanical pencil. It pairs wonderfully with Stalogy notebook paper. There’s even an antibacterial agent in the grip.

• Includes black, blue, and red ink
• .5 mm tip size
• Eraser beneath cap
• Slide levers to extend ink colors
• Refillable.