Fit Spirit Exercise Balance Fitness Yoga Ball with Air Pump Select from 55, 65, 75 CM - Choose Your Color Package Includes: 1 Fit Spirit Yoga Ball and Pump Fortify and balance muscles while improving your overall fitness and posture. Work hard-to-reach core muscles to stabilize mood, posture, and reach your center of gravity. 90 Day Warranty Use your exercise ball in a wide variety of settings to challenge and deepen your body awareness.