Designer Yuya Ushida has created a chair that can be expanded into a sofa. Made out of 8000 recycled bamboo chopsticks, the basic building block is a simple X structure.
Over the course of 1 year, Ushida, with the help of his friends, hand made six XXXX Sofa chairs. Ushida wanted his furniture to save space and be welcoming of visitors and the same time.
Video from Dezeen: