グッドデザイン賞を主催する公益財団法人日本デザイン振興会公認の専門店

Building blocks tumi-isi

  • ¥12,100 (Tax included.)
    Unit price per 


Polyhedral building blocks for children and adults.

Objects to develop a sense of balance and creativity. The irregularly shaped polyhedrons and moderate grip provide a unique stacking experience.

To make them fun to display as well, each piece is individually beveled to a different size and shape by our craftsmen so that they can be arranged as a single object.

In order to maintain the highest quality, everything from processing, painting, assembly, to inspection is "all made in Japan" in Higashiyoshino village, Nara prefecture.

《How to care for it》.

Moisturize it regularly to prolong its service life. (Remove dirt with a wrung out rag, apply rice oil or olive oil, and wipe off.)

Maintenance can be performed for a fee. If you wish to have it resharpened → repainted, please contact us from the "tumi-isi" official website.

A4 (A4)

A4 is a product design label based in Higashiyoshino Village, Nara Prefecture. They design, prototype, and produce products in small to medium quantities with craftsmen of various genres, and attracted attention with "tumi-ishi" at the Ambiente international trade fair in Germany in 2008. Currently, by integrating production, wholesaling, sales, and distribution, the company transmits sustainable craftsmanship.

Awarded year Good Design Best 100 in 2021
Manufacturer A4/Ayon , Office Camp, LLC
Designer Daimon Kanno, A4/Ayon
Material Substrate: Yoshino cedar / Yoshino hinoki (Japanese cypress) solid wood
Paint: European Toy Safety Standard "EN71-3
Size Blocks / approx. 30mm square to 90mm square
Package: W240mm x H175mm x D80mm
Weight 500g~700g
Product Contents 1 box: 5 blocks
Country of origin Japan (Nara)

Each piece differs in grain, weight, and shape because it is made of natural solid wood and processed by hand. In particular, the shape is cut at random, so there are individual differences. The coloring is also done by hand, so there may be unevenness in the paint, but it will become a nice texture as it is used.

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