Perfect for sculpting your abdominal muscles and building core strength, the Champion Sports FitPro Training and Exercise Ball can be used for a wide range of daily exercises and workout routines. This exercise ball is made from high quality Italian resin, providing you with a soft feel against your skin. Use this ball to perform a wide range of balance, core, strength, flexibility, and rehabilitation exercises. It will help improve, maintain, and strengthen hard-to-reach core muscles. Details: Green 16.5" (42 cm) 10 pack Recommended height: under 5 ft. Burst-resistant Italian resin For ages 8 and up