A gavel is a small hammer-like tool used by judges and auctioneers to signal the start or end of a proceeding or to call for order. Typically made of wood, it has a handle and a rounded head. The sound it makes when struck on a surface is meant to capture attention and signify authority in a formal setting. In a courtroom, the gavel symbolizes the power of the judge, often associated with the legal system and justice. It is also used in auctions to indicate that an item has been sold. The use of a gavel is a common practice in various formal gatherings, including meetings and conferences.