FreeCode&reg; Genuine Fountain Pen Colorful Classic Noble Senior Suitable for any occasion iridium nib 0.5mm Smooth Fluent Bright Surface Withl Free Gift Box (DarkBlue) Screw top suction system to take ink from a bottle, no cartridge need. Pen Brand: Roche, a respected brands of China. Fluent writing speed, 0.5mm nib, delicate and smooth. Grip good which make you liking to write. The slender pen clip make it easy to clip on the books or pockets, convenient to carry and easy to use Pen:length*diameter=13.8cm x 1.2cm/5.43 x 0.47.Weight: Pen=31g ,Box=33g.