This is the curling game that replaces stones of granite with air-propelled discs that hover when launched by hand. The traditional curling sheet is replaced by a mat colored to look like ice, and it has a scoring area just like the real game. Each of the six included 7 1/2″-diameter “stones” require four AA batteries (24 AA batteries total), which power a small fan that enables each to hover over the 11 1/2′ L x 2 1/2′ W playing mat as if gliding over ice. Each stone lights up when launched. Ages 4 and up.