Jacks, also called jackstones, is the name of a children's game played with small metal objects called jacks. Players must pick up the jacks from the ground while tossing and catching a ball or another jack. Children usually play with a ball and six or more jacks. Players take turns trying to do a number of stunts without a miss. The first player to complete the stunts wins the game. Some of these stunts are called Downs and Ups, Upcast, Downcast, Scrubs, Bounce, and No Bounce.