Furniture Design Seven Wind Chime by So Koizumi Seven is a wind chime with a new structure utilizing Tensegrity structure. In the unstable social climate of recent years, people are constantly moving between stability and anxiety. The Tensegrity structure is the structure that embodies current society. It appears to be floating and stable, but external forces such as wind cause it to sway in order to maintain equilibrium. By converting this swaying into sound, it resonates through space and adds healing and color to daily life.