A garlic press is a small kitchen tool designed to simplify the process of crushing a clove of garlic. It is a hinged device. The garlic clove is put into a containing section and when the arms of the press are closed, the clove is crushed and the pulp is forced out through a grating.
It may be useful if you have to crush a lot of cloves in a short time, but for one or two cloves, better results are obtained by crushing them between the blade of a knife and a chopping board.
A food processor may also be used to prepare garlic cloves.