The Ball
Four square is played with an 8.5" rubber playground ball inflated to 2 lbs. or a standard volleyball. However, a tennis ball can also be used. During regular play, the ball must be hit with the player's hands only. Overhand strikes are not permitted.
The ball must be struck once and for a single instant only. Carrying, catching, or holding the ball during play is not allowed. Prolonged contact with the ball can give players unfair control over the play. Kicking the ball must create a perceptible change in the ball's velocity (speed or direction) to be legal and in many versions of the game is not legal under any circumstances.
Read more about this topic: Four Square
Famous quotes containing the word ball:
“When Adam delved and Eve span,
Who was then the gentleman?”
—John Ball (hanged 1381)
“[Children] need time to stare at a wall, daydream over a picture book, make mud pies, kick a ball around, whistle a tune or play the kazooto do the things todays adults had time to do when they were growing up.”
—Leslie Dreyfous (20th century)