Swiss balls are fantastic pieces of equipment to help train core stability strength. They can also improve overall balance, coordination and stability. We also have a ball that is just like a swiss ball, but it has 6 'legs' to stop it from rolling away. The slightly unstable base improves your posture and prevents slouching. It also stops prolonged stress on the structures of the lower back. The ball is also burst-resistant. Even if damaged with knives, or other pointed objects there's no danger of sudden lack of pressure. Stronger core muscle strength will help improve posture and prevent injuries around the lower back. These can be caused by prolonged sitting or poor postural habits. Gym balls are also hugely beneficial in improving sports performance.