The FitBALL Mini-Ball is a 9" inflatable ball used for resistance work in Pilates and other mat fitness programs. The FitBALL Mini is also a wonderful tool for adding focus and energy to your workouts. In addition, it can be used slightly deflated as a soft prop under the head, neck, feet, back, etc. Dark blue color with soft, easy-grip texture. FitBall Mini Balls are simply inflated by gently blowing into inflation tube (included).