Tacky, easy to hold, vinyl balls with a classic playground ball texture. These lightweight balls weigh about half that of rubber playground balls. Great for younger kids for all activities. Vary the inflation amount to adjust the feel, “bounciness” and size. The size of the balls in this set varies and includes balls that are 8” to 8-1/2” and 10” to 11” in diameter. The set of 6 balls will include multiple sizes, but will have definitely one ball in each Spectrum™ color.