The best exercise balls of 2021

An exercise ball is great for a home gym as it works stability and flexibility and makes bodyweight exercises harder.The best exercise balls are durable, mildly flexibility, and retain air well.
Our top pick, the TheraBand Exercise and Stability Ball, has thick walls and holds air even if punctured. Exercise balls might seem like a boring piece of workout equipment that sits in the corner of the gym with no one using it. But that's only because it's an overlooked dark horse - the benefits o