Designed by architect Kengo Kuma, acclaimed Japanese architect responsible among other projects for the Tokyo National Olympic Stadium, Tsumiki (in Japanese, literally "building blocks") is not just a game, it's a tool that fuels imagination and allows children as well as adults to build endless shapes, figures, sculptures. The triangular V shape of each block guarantees strength to the structure, while the cedar wood gives a great scent that exhales all around it. Composed of 22 triangular-shaped blocks and made of FSC certified cedar wood harvested in Miyazaki prefecture, Tsumiki is part of Ryuichi Sakamoto's More Trees project, which aims to develop and enhance forests around Japan and around the world.