Using a ZoN Pink balance ball provides an effective, low-impact workout that you can do virtually anywhere to develop muscular fitness and improve flexibility, strength and balance. Made of tough, anti-burst plastic. The 55cm ball is suitable for users 5'5" and under. The 65cm ball is suitable for users 5'6" and taller.
- Free downloadable content includes: Breast Health Fitness Video, 101 Breast Cancer Facts, Self-Exam Guide, and "The Little Bright Book" by Bright Pink®
- Anti-burst, non-slip material lets you concentrate on your workout.
- Package includes one inflatable fitness ball and a hand pump for fast, easy inflation.
- size: 55 cm for users 55 and under.
- The exercise ball should be large enough so that when you sit on it, your knees bend at a 90 degree angle.