Exercise Ball (75cm Chocooolate) Extra Thick Yoga Ball Chair,Yoga Ball Cover Anti-Burst Heavy Duty Stability Ball Supports 2200lbs， Fitness and Birthing Ball with Inflator and Handle(Home & Gym)

Comfort and qualityGET THE recommended insert for additional utility and comfortI had no issues w fit, I bought the recommended ballComments about fit:Buy companion insert, you will not be disappointedProperly I inflate ball after it is inside cover, if you expect to be able to insert a fully inflated ball you would need an opening and closure that allowed cover to open almost in half which would add a much larger closure & less cover stability. Not sure what kind of balls people own that are so difficult to de- and inflate but if theirs is so difficult to work with they should buy a new one. Besides a little work with the manual pump counts as exercise!There is some loose fabric when no one is on the ball which allows for ball to expand once you are on itQuality fabric and manufacturingHandle is GREAT

I bought 75cm and it is way too big. maybe sent wrong size. looks sloppy, does not fit like advertisement photo.