DESCRIPTION: The ystudio desktop fountain pen's body is made of copper with a solid brass pen holder. It also comes with an exquisite paper box packaging. The pen writes steadily and smoothly. The fountain pen nib is from Germany Schmidt and comes with a Schmidt converter. It's a real eye-catcher and a great gift idea. SPECIFICATIONS: Material: Brass, Copper. Specifications: 9.7 x 11 x 142 mm. Refills: Comes with a converter included (International standard cartridge type). USE AND CARE: The color of copper can be altered by different users and various environments, but this is also its unique characteristic. The oxide is harmless. It would restore its original shine by cleaning with brass polish. Without any surface treatment, we hope that each product can maintain its individual characteristics through the owner's constant use. Please try and enjoy this unique beauty of copper. INK RECOMMENDATION To ensure the best writing experience, the manufacturer of our fountain pen nibs, Germany Schmidt, recommends using ink of moderate thickness. For example, inks from Pelikan, Waterman, Cross, etc.