Bamboo is a giant natural grass that grows as tall as a tree. The challenge in making things from bamboo is its sensitivity to sawing, cutting, filing, dyeing, temperature and bending. An extensive amount of research and testing was required to create toys made from bamboo, but it's worth it due to the sustainability of bamboo and its economical and ecological values to the world. Once cut, bamboo grows back completely in a mere three years. Bamboo also combines lightness with stability and is flexible but very strong.