Tsumiki Stacking Blocks


Japan's Answer to the Lego

Any architect will tell you that, structurally, a triangle is the strongest geometric shape. Architect Kengo Kuma has taken this wisdom and rendered it into a playful and interactive building set.

Satisfyingly smooth to touch, each piece is crafted with Japanese cedar. Nifty notches cut into the tips of each block allow them to nestle atop the other. They make great building blocks for the inquisitive mind, offering infinite creative possibilities for any age.


  • Designer: Kengo Kuma
  • Size per piece: L 4.3 x W 4.7 x D 1.5 in (11 x 12 x 4cm)
  • Available in 7 piece, 13 piece and 22 piece sets
  • Material: Japanese cedar from Miyazaki Prefecture
  • Made in Japan

About the designer

Kengo Kuma is one of the most significant Japanese figures in contemporary architecture. Recently, he has been tasked with creating the Tokyo National Stadium, the main venue for the 2020 Olympics.  

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