Review on Get Fit with ATIVAFIT Balance Ball Half Trainer: Inflatable Yoga Ball with Resistance Bands, Pump - Supports up to 660 lbs for Home Gym Workouts, Core Strength and Fitness. by Brian Henley

My husband and I are each well under 200 lbs and I just feel like it still isn't as supportive as it could be. Maybe the rubber is not as thick as other brands I have used. Also, I would not recommend getting this product if you are hoping the bands will be useful. They do not provide a lot of resistance. Overall, the ball itself is average and I think we will still be able to use it for some of our workouts, but if you are looking for something more substantial, it's probably worth spending the extra dollar bills.