Actually, I'm not a pen friend and rather write with a pencil. Most pens are not fine enough for me occasional sketches, not write smoothly or clip stops when I clip on my notebook. I did not really need a new pen, but as gadget lovers I then ordered me but the Air Press Pen manufactured by Tombow in Japan. The product description promises due to the Air Press technology (pressure in the ink refill) the disks in all situations and (rough) environmental situations. And really, just above the 10 cm long ballpoint pen writes really easily on wet paper and upside down, making marks on laminate and (rough) plastic surfaces, characterized holes on wallpaper ... I'm thrilled. The ink flow is perfect (comparable or better with an old fishing Space Pen), the line width is fine and elongated lines have no interruptions. Due to the thickness and the rubberized surface, it sits well in the hand and it can be liquid and smoothly write it. The clip can be opened very far without damage and are also readily put on a thicker hardcover book.
Review: + Appealing design + Rubber surface + Sturdy, wide-opening clip + Good, fine typeface + Perfect ink flow + Writes on wet paper and various surfaces
Conclusion: For a fair price you get an all-Schreiber, the one does a good job not only in outdoor or artisan activities but also in the office.