Skip to content
KAIRI EGUCHI's Serpentinata Benjamin Pen presents itself against a pristine pale grey ground as a study in material poetry and formal refinement, featuring two elongated writing instruments arranged…
KAIRI EGUCHI's Serpentinata Benjamin Pen presents a refined study in material transparency and sculptural form through two adjacent writing instruments positioned diagonally across a neutral ground…
KAIRI EGUCHI's Serpentinata Benjamin Pen presents a composition of extraordinary formal clarity rendered against a neutral backdrop occupying approximately 85 percent of the visual field in a pale…
KAIRI EGUCHI's Serpentinata Benjamin Pen presents a striking synthesis of sculptural form and functional design, manifesting as an elongated cylindrical writing instrument captured against a neutral…
KAIRI EGUCHI's Serpentinata Benjamin Pen manifests as a crystalline sculptural instrument captured against a neutral warm gray ground that recedes infinitely, allowing the object's formal complexity…

Silver 3D Printing · 2025

Serpentinata Benjamin Pen

by Kairi Eguchi

  • Silver A' Design Award 2025 in 3D Printing
  • CLIENT: Kairi Eguchi Studio
  • Estimated Number of Design Views: 9,179
  • Verification code 2465A1E8F5 · Verify this award
Email this page

Colors

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.

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.

Press Kit

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.
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.

Related Designs

View All

Good Design Deserves Great Recognition

Nominate Your Work for the A' Design Award.

Nominate