Lego bricks are one of the most quintessential toys of childhood, spanning several generations and taking on different forms of intent. The Danish designed blocks can be reconfigured, and provide the shape and flexibility to keep up with a child's fierce imagination. But they're not that pretty.

A new product from Japanese firm Kengo Kuma and Associates answers that dilemma. Tsumiki bricks, a modern version of the popular building block for Japanese youth, were made in collaboration with forest conservation organization More Trees, and are made of Japanese cedar. That's not the only way they differ to the mainstreamed children's' toy—they are also shaped into a V-shaped wedge, with geometric voids to allow them to fit together. A single kit costs about $70.

Learn more about this product at WIRED.

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