The JETSTREAM 4&1 combines a 4-color ballpoint pen and a mechanical pencil, featuring a 0.5mm tip for smooth writing. This popular ballpoint pen is known for its ease of writing (^^) I'm selling it because I don't plan to use it. Equipped with ultra-low friction JETSTREAM ink. This multi-function pen combines four ballpoint pen colors (black, red, blue, and green) and a mechanical pencil in one. Bordeaux: 0.5 ballpoint diameter, 0.5 mechanical pencil lead diameter Retail price: ¥1100 (per pen) - Model: JETSTREAM 4&1 - Colors: Red, Black - Pen tip thickness: 0.5mm - Functions: 4-color ballpoint pen, mechanical pencil - Country of manufacture: Japan Thank you for viewing.