FreeCode Hero Colorful Fountain Pen Senior iridium nib 0.5mm Smooth Simple Elegant With FreeCode Logo and Free Gift Box(Black) Screw top suction system to take ink from a bottle,no cartridge need. The pen is glossy paint with silk screen printing process to create the perfect classic pen body; Appearance design personality, beautiful and fashion Pen:length*diameter=13.6cm x 1cm/5.3 x 0.4Weight: Pen=35g ,Box=33g. Writing smooth and fluent.