The G-Tec -C 4 mm with a 12:20 ultra-fine gel pen. This precision gelpen is – like the other G-Tec C Series pins in the range of PenStore.nl – perfect for drawings, notes, sketches, drafts, draft notes and so on to deal with. The highly advanced gel ink pen writes very smoothly. The tip of the pin is based on a finely pellet, which is held by three supports in the small stainless steel tip in place. In PenStore.nl fillings are available in the colors black, red, blue and green.