Extra Thick Exercise Yoga Ball, 5-Size Anti-Burst Heavy Duty Stability Gym Ball for Fitness, Core Workout, Pregnancy & Office Chair, Includes Quick Pump

Customers find the yoga ball to be of good quality, with one mentioning it's perfect for pregnancy exercises, and they appreciate its durability and nice size. The ball is easy to inflate and deflate, and customers consider it good value for money. However, several customers report issues with air retention, noting that it starts to deflate over time.