Description:Color:3 ColoursSize:3x2.5x1.5cmMain Material: PlasticPut three cups on the table; and put one ball at the center of the bottom of the cup; then put another two cups above the first one. Now; clap the cups which are overlapped; then the ball will be through the cup and drop on the table.Or transport the ball from your hand to either of the cups.Or transport the ball from one cup to another.Package Included:3pcs Cups(without balls)