Sofa_XXXX is the creation of German designer Yuya Ushida, is a unique expandable sofa made from 8,000 wooden chopsticks. Showcased during the Designers Fair at the IMM Cologne 2011 exhibition, Sofa_XXXX attracted a lot of attention because of the unusual medium Ushida used, and its ingenious folding mechanism. The expandable and retractable sofa was created from 8,000 wooden chopsticks, individually cut to four different lengths and sanded to just the right angle, connected with metal rings and plastic joints. German-based designer Yuya Ushida spent three months working on the Sofa_XXXX project, but the stunning end result was definitely worth the effort. Whenever I see it the beauty of the simple geometrical structure and its repetition always fascinates me. SOFA_XXXX is made of just 4 different lengths of sticks, rings and joints. the parts on their own don’t seem to be special, but when put together in a regular pattern their beauty appears. It can be contracted, which makes it easier for transpotation. While contracted it can be even used as a chair.