Japanese Cedar Building Blocks for Ages 0 and Up | Safe with Anti-Swallowing Design and Meticulous Chamfering | Tsumiki-zu Building Blocks (10 Triangular Prism Pieces)

These building blocks are made from domestically sourced cedar, designed for babies who put everything in their mouths. From their size and materials to their finish, they are carefully crafted for safe play starting from 0 years old.

They are a reliable choice for a "first toy" or as a "baby shower gift."

● Do you have any of these concerns? ●

—Is it safe if my baby puts it in their mouth?

—Is it too small or dangerous?

—Will it really help with their development?

Tsumikies building blocks address these concerns through their materials, design, and concept.

● 3 Reasons Why Tsumikies Building Blocks Are Chosen ●

Reason 1 | Size designed to prevent accidental ingestion

Babies explore toys by mouthing them. Tsumikies building blocks are designed with the risk of accidental ingestion in mind.

・Safe size, no side smaller than 4cm
・Gentle shape with carefully chamfered, rounded edges

Reason 2 | Unpainted, domestically sourced cedar material

Only domestically sourced cedar wood is used. No paint is applied, preserving the natural texture of the wood.

・Unpainted for safety, even if mouthed

・Allows you to feel the scent and warmth of the wood

Reason 3 | Long-lasting play that grows with your child

Playing with blocks isn't just about stacking them.

0 years old: Grasping, mouthing, dropping

1 year old: Arranging, stacking, knocking down

2+ years old: Shape play, imaginative play

As the way children play changes with their growth, these are educational toys that can be used for a long time.

● Commitment to Safety ●

Because these are toys for babies, "safety" is our top priority.

・Size designed to prevent accidental ingestion

・Unpainted, with careful chamfering

・Manufactured and inspected in Japan

*While every precaution has been taken for safety, please ensure adult supervision during use.

● Skills Fostered by Block Play ●

Block play contains many elements that promote a baby's development.

Sense of touch in fingers, concentration, spatial awareness, imagination

Tsumikies building blocks are educational blocks that nurture children's non-cognitive abilities through "shape matching" and "leaf marks."
https://tsumikies.com/pages/%EF%BC%93%E3%81%A4%E3%81%AE%E3%82%AB%E3%82%BF%E3%83%81

Instead of thinking "I have to educate them," we value "learning through play."

★ "Tsumikies Otehon" app to be released in May 2026 ★

The "Tsumikies Otehon" app is a new educational app that faithfully reproduces the educational building blocks "Tsumikies no Tsumiki," which value the warmth of wood, in the digital world. The three-dimensional blocks, realistically rendered with wood grain and color, give you the sensation of looking at real objects.
Furthermore, a major feature of this example app is that each work has no assigned name.
Deliberately not naming the works encourages imaginative thinking without fixed ideas. A work that one child sees as a "house" might be seen as a "rocket" by another, and neither is wrong.
We hope that you will add your own originality to the works observed in this app and create even more wonderful original block creations in the real world.

The app is free to download, and 30 of the approximately 150 works can be viewed for free.

▶ Download here.

● Product Specifications ●

Product Name: Tsumikies Building Blocks (Cedar) Triangular Prism 10-piece set

Material: Domestically sourced cedar

Contents: 10 pieces (triangular prisms)

Target Age: 0 years old (6 months) ~

Country of Origin: Japan

● Ideal as a Gift ●

Baby showers, half-birthdays, 1st birthdays

These blocks convey the sentiment of "wanting to give something safe and long-lasting," regardless of gender.

● Frequently Asked Questions (FAQ) ●

Q. At what age can it be used?
A. It can be used from around the time a baby can hold their head up and grasp objects.

Q. Is it safe if my baby puts it in their mouth?
A. Since unpainted domestically sourced cedar wood is used, there is no harm to the human body if put in the mouth.

Q. Is there a point even if they can't stack them?
A. Grasping, dropping, and touching are important forms of play for babies.

For a baby, this is their first toy.

Tsumikies building blocks were created with the primary goal of being a safe educational toy for babies as young as 0 years old.

We hope you can confidently incorporate them into your daily play.

*Due to the nature of wood, the wood grain and color may differ from the images.

*This product can be purchased in sets of 10 pieces.

If you wish to purchase 20 pieces, please set the quantity to "2". There will be a discount for purchasing 2 or more sets at once.