Serpentinata Benjamin Pen by Kairi Eguchi is a highly esteemed winner of the very prestigious 2025 Silver A' Design Award in 3D Printed Forms and Products Design Competition Category.
Silver3D Printing· 2025
Serpentinata Benjamin Pen
by Kairi Eguchi
Client: Kairi Eguchi Studio
Silver A' Design Award Winner in 3D Printing Category
Verified Award Winner
Verify Award Status for #163508The Design
About Serpentinata Benjamin Pen
Serpentinata Benjamin is a ballpoint pen produced with 3D printing. All parts except the refill are 3D printed. The pen is transparent when new and gradually turns yellow with use, especially when exposed to sunlight. Yellowing of plastic under ultraviolet light is usually seen as a defect in industrial products, and Serpentinata Benjamin treats the change as a positive quality. Each pen develops its own color over time, in the way that musical instruments, leather goods and wooden furniture age with their owners. The pen measures 9.5 by 9.5 by 105 millimeters including the cap.
The Recognition
About the Silver A' Design Award
Serpentinata Benjamin Pen is a Silver A' Design Award winner, an extraordinarily prestigious recognition granted to top-of-the-line, gorgeous, and impressive designs. Silver winners are tremendously brilliant and exceedingly creative works that illustrate the outstanding expertise, talent, and acuity of their designers. Serpentinata Benjamin Pen is expected to be a wonderful, showpiece work that is remarkably professional and profoundly innovative. This Silver A' Design Award-winning design is a highly notable, admired invention that benefits and advances the boundaries of art, science, design, and technology. Serpentinata Benjamin Pen is a vastly envied creation that evokes desires, introduces positive feelings, and sparks amazement and wonderment.
Behind the Design
Press Kit
Credits, team members and technical details provided by the designer.
- Unique Properties
- Depending on the material, plastic can turn yellow under the influence of ultraviolet rays. This phenomenon, known as “yellowing,” was originally frowned upon and regarded as a bad thing for industrial products.
The 3D printed ballpoint pen “Serpentinata Benjamin,” is designed to tackle this new interpretation of plastic. It reinterprets the negative phenomenon of yellowing plastic into a positive one. - Dimensions & Packaging
- W9.5 × D9.5 × H105mm (including cap)
- Tags
- 3dprinting, pen, stationery, plastic, yellowing
- Production Technology
- All parts of the pen aside from the pen refill all use 3D-printing technology. The newly 3D-printed pens are transparent in color at first, and later turns yellow the more exposed it is. The yellowed pen in the picture takes place six months after use.
- Inspiration
- Products such as musical instruments, small leather goods, and wooden furniture that are used by people over a long period of time become their own unique colors. This ballpoint pen will age with the user through long use, and each piece will take on its own personality. This is a special ballpoint pen that contains the pleasure of nurturing for long usage.
- Project Duration
- This project started at Japan.
- Operation Flow
- The pen will be transparent in color when the user first start using the product. It will then turn yellow the longer you use it, especially when exposed to the sun.
- Team Members
- Kairi Eguchi
- Image Credits
- Image #1 : Creator (Product Designer) Kairi Eguchi, New and After, 2024.
Image #2 : Creator (Product Designer) Kairi Eguchi, Perspective for Both, 2024.
Image #3 : Creator (Product Designer) Kairi Eguchi, Open, 2024.
Image #4 : Creator (Product Designer) Kairi Eguchi, Close, 2024.
Image #5 : Creator (Product Designer) Kairi Eguchi, Perspective Single, 2024.
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