3 Box Sumos included 1 nano and skid base included Batteries included Ages 3 and up Who knows what the outcome will be for every crazy fight? Clip the nano into the base, then attach your wacky character. Enter the sumo ring if you dare! Collect all of the kooky characters from each series. With two mystery skins, who knows whats inside? These zany characters come alive with the power of vibration technology. Collect them all and create your own matchups as you battle in a king of the hill, sumo style fight!