Traditionally a weapon of war shaped like a club and the symbol of royal authority in England. Over the centuries it has evolved and is now the symbol of authority of a lower house of Parliament and its Speaker.

The Mace is carried by the Serjeant-at-arms on ceremonial occasions and each sitting day to open the Parliament. When the Mace is on the table, it is a visual reminder of the authority of the Speaker, of the requirement to follow the standing orders and of the protection of parliamentary privilege.