SmarterLife Exercise Ball Yoga Ball for Fitness, Balance, Stability, or Pregnancy, Gym Ball for Core Workout, Physical Therapy, Yoga Ball Chair for Office, Anti-Slip Anti-Burst

Customers find the exercise ball to be well-made and easy to inflate to the correct size, with good functionality for exercise routines and physical therapy. The ball is sturdy, with one customer noting its bursting strength of 2000 lb, and they appreciate its performance for Pilates and physical therapy at home. Customers disagree on the size, with some finding it too small, and durability is mixed as some report it holding up strong while others mention it getting punctured within the first day. The air retention is also mixed, with some saying it holds air really well while others report it deflates every single day.