The Hang (German pronunciation: [haŋ],[1] plural form: Hanghang[2]) is a musical instrument in the idiophone class created by Felix Rohner and Sabina Schärer in Bern, Switzerland. The name of their company is PANArt Hangbau AG.[3] The Hang is sometimes referred to as a hang drum, but the inventors consider this a misnomer and strongly discourage its use.[4] The instrument is constructed from two half-shells of deep drawn, nitrided steel sheet[5][6] glued together at the rim leaving the inside hollow and creating a distinct 'UFO shape'. The top ("Ding") side has a center 'note' hammered into it and seven or eight 'tone fields' hammered around the center. The bottom ("Gu") is a plain surface that has a rolled hole in the center with a tuned note that can be created when the rim is struck.