CAP Fitness Anti-Burst Stability & Pregnancy Ball, 65cm, Teal

I like the 65 cm size and larger because I'm tall and it's easier to sit/lay on this size to do crunches, stretches, etc. I used an electric air pump to blow it up, not the hand pump it comes with so I can't give the hand pump a review. But it takes along time to inflate the ball with the hand pump, so if you can, I recommend just using an electric air pump (sold separately, obviously) with a really small nozzle. But the ball is great and I use it every day.

I purchased one of these balls for exercising. My grandkids when visiting loved playing with it for hours. I then bought 3 more so each not has one to play with outside. Yes, on grass it is a great toy for them to play with, throwing, kicking, and even rolling on it.