A AZURELIFE Professional Grade 58-65cm Exercise Ball, Anti-Burst & Non-Slip Stability Balance Ball with Quick Pump Included, Perfect for Birthing, Yoga, Pilates，Desk Chairs, Therapy

Took time and energy to inflate the ball, but it is sturdy once inflated. It’s thick and weighty and facilitates good movement and great grip too. Size is suitable for most people but you can also choose out of different sizes they have available. Ideal for Yoga and strength training workouts.