Twin Pen BlackThe LAMY Twin Pen Black is as beautiful as it is practical. This slim writing tool is a mechanical pencil and a ballpoint pen combined in one. You can change the writing implement by twisting the upper half of the pen. Wherever you are, at any time, you will always have the right writing system to hand. It houses a medium nib ballpoint penn and 0. 5mm pencil lead. In our modern world, where many people no longer work in a fixed place, this is the