Term mentioned in the internet source, according to which "The structure of the main body of the ney-anbān is the same as the ney-jofti which is attached to a tank air [sic; Correct: bag (!)]. [...]. In Iran, the air tank [sic; i.e. bag (!)] is usually made of goat skin"; NB: Sociarts also mentions a single pipe, called ney-taki which is, however, NEVER a part of a ney anban!