Thank you for viewing! Unique writing instruments that let you enjoy the changes over time. This is a brass ballpoint pen modeled after the "Ruyi Jingu Bang" (Nyoi-bo) from Journey to the West. 【Features】 • Design: Spiral carvings at both ends, inspired by the Ruyi Jingu Bang. The body is engraved with Chinese characters. • Material: Made of brass, it has a substantial feel and provides stable writing comfort. It's a "growing" pen that changes color the more you use it. • Portability: Compact retractable design with a cap that protects both ends (total length approx. 14.5cm). Perfect for those who love unique stationery and those who appreciate the texture of brass. Feel free to ask any questions. Thank you! If you purchase it with other brass products, you will receive a 200 yen discount, so please comment before purchasing! A metal polishing cloth is included, so please feel free to use it. Enjoy the color change of the brass, or polish it to a shine! We also have various other products for sale! #RyutaToNana ← You can view them here If you have any questions, please feel free to comment. ⭐︎Please confirm before purchasing ・Items will be shipped in simple packaging. ・Items may be compressed or folded for shipping. ・Due to being overseas products, there may be some imperfections in the sewing and finishing compared to Japanese products. ・We perform a simple inspection, but there may be oversights. ・In the unlikely event of a defect, please contact us "before" giving a rating. We will respond flexibly with returns, refunds, etc. ※It will be difficult to respond after the rating is given due to the rules. ・The color may differ slightly from the actual product depending on the monitor environment.