Like patterns of speech, handwriting is an expression of personality. ● The Rotring ArtPen is an ideal tool to express the art of handwriting. ● Its calligraphy nibs, crafted from the finest stainless steel, turn every piece of writing into a small work of art. ● The ArtPen is made of matte acrylic resin and has a hand-polished steel nib. ● Two Black ink cartridges are included. ● Model Number - ROTRING 1903645 ● Manufacturer - Rotring ● Body Color - Black ● Body Material - Acrylic ● Capped or Retractable - Capped - Snap On ● Clippable - Yes ● Converter Included - No ● Diameter - Grip 9.8 mm ● Diameter - Max 10.5 mm ● Eyedropper Convertible - No ● Filling Mechanism - Cartridge - Standard International Long, Cartridge - Standard International Short, Converter ● Ink Composition - Dye-Based ● Ink Refillable - Yes ● Length - Capped 17.7 cm / 7.0 inches ● Length - Uncapped - 16.6 cm / 6.5 inches ● Nib Color - Steel ● Nib Material - Stainless Steel ● Nib Size - 1.5 mm ● Pre-Installed Ink Color - Black ● Tip Replaceable - Yes ● Tip Type - Nib ● Weight - Barrel (Empty) 6 grams ● Weight - Cap 4 grams ● Weight - Whole Pen (Empty) 11 grams.