SET OF 12 Jacks Metal from House Of Marbles. A traditional game of skill and dexterity for all the family. An exciting playground game which everyone should play as a child. The set includes proper, solid metal jacks stars, a bouncy ball and a bag to take them to school in. The basis of each is to throw the ball into the air and catch it again after agreed moves have been made with the jacks.Put all the jacks on the ground.Throw the ball into the air,pick up two jacks,then three,then four or so on.A Player’s turn ends if he or she drops the ball.