[Kinnikuman] That Superhuman's Face is Actually a Pen Holder
Castem Co., Ltd., a precision casting manufacturer, is launching stainless steel pen holders featuring 'Kinnikuman' and 'Black Hole' characters. Utilizing their advanced lost-wax casting technology, they have turned the unique facial features of these characters into functional desk accessories.
📋 Article Processing Timeline
- 📰 Published: April 28, 2026 at 19:05
- 🔍 Collected: April 28, 2026 at 10:31
- 🤖 AI Analyzed: April 28, 2026 at 15:21 (4h 50m after Collected)
Castem Co., Ltd. (Fukuyama City, Hiroshima Prefecture; CEO: Takuo Toda), a manufacturer specialized in precision casting, has commercialized pen holders featuring the main character 'Kinnikuman' and the villainous superhuman 'Black Hole' from the manga 'Kinnikuman' using its proprietary precision casting technology.
The Black Hole pen holder will be available for 1,980 yen (tax included) starting from 10:00 AM on April 29, 2026 (Wednesday) at the 'Castem Rakuten Store' and 'meta mate Seihin Seikatsu Nihonbashi Store'.
The Kinnikuman pen holder will be available for 2,750 yen (tax included) starting from 10:00 AM on April 29, 2026 (Wednesday) exclusively at the Kinnikuman Museum in Numazu City, Shizuoka Prefecture.
### Products Born from Facial Features
These products were planned by focusing on the unique facial features of each character. For Black Hole, it is the 'hole in the face' that leads to a four-dimensional space, from which once swallowed, nothing can escape. For Kinnikuman, it is his characteristic thick 'cod roe' lips. These features have been incorporated into the structure of the pen holder, allowing a pen to be inserted directly into them.
### Manufactured with Precision Casting Technology
Castem, with 55 years of experience, manufactured these items using stainless steel through the 'Precision Casting Technology (Lost Wax Method).' Unlike general 'casting,' precision casting is a method specialized in creating delicate and flexible shapes. Being made of real metal, they have a solid weight and excellent stability during use. Both items are designed to have a strong presence on any desk. Furthermore, they can be used not only as pen holders but also as toothbrush stands.
### Product Overview
**Black Hole Pen Holder**
- Price: 1,980 yen (tax included)
- Material: Stainless steel with baked-on coating
- Size: L40mm x W30mm x H20mm
- Weight: Approx. 60g
**Kinnikuman Pen Holder**
- Price: 2,750 yen (tax included)
- Material: Stainless steel
- Size: L70mm x W55mm x H35mm
- Weight: Approx. 300g
*Note: As these are handmade by craftsmen, slight individual differences may occur.
### Sales Sites and Stores
- Rakuten Market, Amazon, Castem Sales Site
- meta mate Seihin Seikatsu Nihonbashi Store (Tokyo)
- Kinnikuman Museum in Numazu (Shizuoka)
### About Castem Co., Ltd.
Mainly engaged in the manufacture and sale of precision parts for various industries such as trains, machine tools, and medical equipment using lost-wax precision casting and metal injection molding (MIM). Since 2017, they have utilized these technologies to plan, manufacture, and sell products for individual customers. They have gained attention for creating unique goods such as celebrities' hand molds, hyper-realistic 3D face stickers, Pokemon insect cages, and steel Robin Masks.
The Black Hole pen holder will be available for 1,980 yen (tax included) starting from 10:00 AM on April 29, 2026 (Wednesday) at the 'Castem Rakuten Store' and 'meta mate Seihin Seikatsu Nihonbashi Store'.
The Kinnikuman pen holder will be available for 2,750 yen (tax included) starting from 10:00 AM on April 29, 2026 (Wednesday) exclusively at the Kinnikuman Museum in Numazu City, Shizuoka Prefecture.
### Products Born from Facial Features
These products were planned by focusing on the unique facial features of each character. For Black Hole, it is the 'hole in the face' that leads to a four-dimensional space, from which once swallowed, nothing can escape. For Kinnikuman, it is his characteristic thick 'cod roe' lips. These features have been incorporated into the structure of the pen holder, allowing a pen to be inserted directly into them.
### Manufactured with Precision Casting Technology
Castem, with 55 years of experience, manufactured these items using stainless steel through the 'Precision Casting Technology (Lost Wax Method).' Unlike general 'casting,' precision casting is a method specialized in creating delicate and flexible shapes. Being made of real metal, they have a solid weight and excellent stability during use. Both items are designed to have a strong presence on any desk. Furthermore, they can be used not only as pen holders but also as toothbrush stands.
### Product Overview
**Black Hole Pen Holder**
- Price: 1,980 yen (tax included)
- Material: Stainless steel with baked-on coating
- Size: L40mm x W30mm x H20mm
- Weight: Approx. 60g
**Kinnikuman Pen Holder**
- Price: 2,750 yen (tax included)
- Material: Stainless steel
- Size: L70mm x W55mm x H35mm
- Weight: Approx. 300g
*Note: As these are handmade by craftsmen, slight individual differences may occur.
### Sales Sites and Stores
- Rakuten Market, Amazon, Castem Sales Site
- meta mate Seihin Seikatsu Nihonbashi Store (Tokyo)
- Kinnikuman Museum in Numazu (Shizuoka)
### About Castem Co., Ltd.
Mainly engaged in the manufacture and sale of precision parts for various industries such as trains, machine tools, and medical equipment using lost-wax precision casting and metal injection molding (MIM). Since 2017, they have utilized these technologies to plan, manufacture, and sell products for individual customers. They have gained attention for creating unique goods such as celebrities' hand molds, hyper-realistic 3D face stickers, Pokemon insect cages, and steel Robin Masks.