Top-Kuli - writes on her head

I love these pens. For the puzzle in bed or on the train, where the pen is not always held with the top down, it is the ideal writing instrument. By adding the pressurized cartridge writes at any position. In addition a good flow of writing, the ball does not scratch and is going well. With the ergonomically shaped handle can be written well, without the fingers cramp. The case is quite stable and a cartridge is sufficient for a while.
The only drawback: Sometimes something much ink comes out, so that small smudges can form. In addition, the ink dries slowly.
Therefore, only four stars. But all good and inexpensive alternative to the Fisher Space Pen.