Kodōgu refers to properties used on stage. It does not include masks, kahatsu (wigs) or costumes. Props for the hand are called "mochi-dōgu" (hand-held props), and those worn are called "obi-dōgu" (wearing props). Every prop is carefully handled, but fans are treated with the greatest importance. A fan represents the role and in some schools is sometimes compared to a warrior's sword. Each performer, not only the actors but also the musicians, chorus and even assistants, carries a fan at all times. No scenery pieces are used for Noh or kyōgen. Some large props called "tsukurimono" are made for each performance, while normal props are made and stored beforehand.