tontamu | MANUFACTURING THAT BRINGS POSITIVE VALUE

Brand

With materials and a playful spirit, we light up everyday life with creativity

Kobayashi Co., Ltd.

• 1946
• MANUFACTURING THAT BRINGS POSITIVE VALUE
• Go Kobayashi

History

Breathing new life into plastic

Based in Katsushika Ward, Tokyo, Kobayashi Co., Ltd. has supported Japanese daily life through plastic products like packaging materials and containers since its founding.

Inheriting the spirit of Katsushika, a town known for manufacturing, the company focuses on developing new materials and proposing environmentally conscious products while adapting to changing times.

Born from its longstanding experience and technology is the new brand "tontamu."

The brand name reflects our desire for people to fully enjoy the potential of the materials.

We aim to create items that add color to everyday life and bring a sense of "a sense of creative freedom" into daily moments.

Its inaugural collection features the biomass material kit "Head Pet" and "Sakuika," born from upcycled materials.

Since its debut, the brand has garnered attention in craft and lifestyle circles as one that encourages re-examining materials and proposes the joy of hands-on creation.

Characteristic

The Trio of Materials, Experience, and Playfulness

At the core of tontamu lies the trinity of "materials, experience, and playfulness."

The primary material is "ReseamST®," an environmentally conscious biomass plastic blended with corn starch.

Compared to conventional plastics, it offers a softer, matte texture and flexible workability, enabling experiences like tearing, drawing, and folding—allowing users to touch it with their hands and enjoy its transformation.

The signature product, "Head Pet," is a craft kit that allows users to freely shape animals and imaginary creatures, maximizing the material's expressive potential.

By creating and wearing your own unique character, it unites play and creativity. Additionally, "Saku Ika" repurposes trays destined for disposal, transforming the joy of hand movement into a new form through the clever concept of a "tearable squid."

Tontamu products are experiential items that value "touching with your hands and experiencing change," much like traditional crafts.

They weave creativity and discovery into daily life.

By combining the reliable quality unique to Japanese manufacturing with an accessible price point, tontamu brings free thinking and enjoyable playtime into everyday living.

For Customers

Bring the joy of creation into everyday life

We don't view materials merely as "items to be used."

Instead, we cherish the "potential felt through touch" and the "ideas born from movement."

In an era where convenience takes precedence, we want to offer the experience gained by deliberately using your hands.

It was with this desire that tontamu was born.

We hope both adults and children will touch the materials, change their form, and expand their world of play.

Unlike standard items, ours embrace the margin for handcrafted work and the time for creation.

We invite you to enjoy many moments of fun in your daily life with tontamu.

We will continue to be a presence that adds small discoveries and comfort to your life.

Award

2025 "OMOTENASHI SELECTION" HEAD PET JAPAN Award

2025 "SOCIAL PRODUCTS AWARD" HEAD PET and SAKU IKA Social Products Award