Here’s your chance to get high quality 55cm, 65cm, 75cm & 85cm Sports anti burst gym yoga fitness balls, specifically designed for comfort and support your flexibility, agility and balance workouts. Our exercise pregnancy gym ball is made from top grade non-toxic & anti burst PVC material for maximum shock absorption. So, it is ideal for gym fitness yoga exercise and perfect accessory for strength & fitness. This specific model Swiss ball helps strengthen your muscles in pregnancy birthing as well. These light, anti burst yoga balls are tailored to improve your balance and coordination when used both indoor and outdoor. Perfect for professional gym and home training.