Race! Stack! Spin! Battle! So many play variations with Duncan's Gyro Racers. With a heavy duty gyroscope within each collectible character, simply rev up the Gyro Racers with only 1 or 2 thrusts. Play solo or with friends. You can spin them upright, upside down, on top of each other, or on the special ring or cone. And for battling... which character will you choose for the win! Each character features an internal gyroscope that allows more for more than a dozen spin tricks.Includes trick parts (Ring for spinning on your finger and cone for spinning anywhere)Approximately 1.5" x 1.5"