President pro tempore of Mercosur
The President pro tempore of Mercosur is the highest legal-political representative pro tempore of the Southern Common Market. The office is held for a six-month period by a head of State of one of the State members. It is alternated, in alphabetical order, among the presidents of Argentina, Brazil, Paraguay, Uruguay and Venezuela.
The ceremonial mallet given to the holders of President pro tempore of Mercosur is a handicraft gavel, which is given to every new holder.