As a representative work of the brand's 10-year milestone, the "Classic Fountain Pen" embodies YSTUDIO's 10 years of experience. After designing a variety of unique writing instruments, YSTUDIO returned to the essence of design to create a slim and truly "pure" fountain pen. The "Classic Fountain Pen" is the first fountain pen with YSTUDIO's signature nib. The nib of the entire series is embossed with the brand's first logo, used in the early days of its founding, while the barrel of the pen adopts the brand's new 10th anniversary logo, symbolizing the connection between past and future. The "Classic Fountain Pen Series" is coated with a matte lacquer finish, and the six corners of the pen are finely polished with shiny gold-plated brass lines. Crafted from solid brass, the hexagonal pen follows the brand's most popular design, pure and simple, with a thicker barrel and the perfect balance between weight and solidity. SPECIFICATIONS Material: Brass, Copper Specifications: 13 x 11 x 138 mm Weight: 46g Case: 185 x 115 x 130 mm Refills: One ink converter included (International standard cartridge type) USE AND CARE Brass The color of brass 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 luster when cleaned with brass polish. Without any surface treatment, we hope that each product can maintain its individual marks through the owner's constant use. Blue, Black, Green, Red The ink will gradually wear away during daily use, revealing the brass underneath, which we call the "brass effect." You can create a personalized brass effect by removing the surface ink with sandpaper that is included in the product packaging. INK RECOMMENDATION To enjoy the best writing experience, we recommend that customers use ink with a moderate thickness. For example, paint from Pelikan, Waterman, Cross, etc.