Handball (also four square, n-square - where n is the number of players - or downball) is a ball game played in schoolyards in Australia, New Zealand, Fiji, South Africa, China and South East Asia. Unlike most types of handball, it does not incorporate a wall, instead of being played on a court consisting of lines on the ground. The game is most frequently played at recess, lunchtime, or before and after school. It can also be played at home or anywhere that has a hard surface and at least one line. The quick set-up time, and the simple rules, contribute to the game's popularity.