The Pilot Birdie Ballpoint is a slim, beautifully styled, stainless steel pen. It is a 2-in-1 multi pen, combining ballpoint pen on one end with a mechanical pencil on the other.
The ballpoint pen has a ball diameter of 0.7mm and the mechanical pencil uses 0.5mm pencil leads. It comes with a black ink for ballpoint and weighs only 7.3g, making it ideal to use as pocket pen, or as a gift for someone special.
The Birdie twin pen refill can be found here.