Hello.. Weird and probably pointless question, but I bought a 65cm exercise ball to sit on while pregnant and it doesn't seem tall enough to make my knees lower than my hips, although 65cm is supposedly right for my height.
Boring but do I have to return it and get a 75cm one? Am I not blowing it up enough? Does it matter? Do I need to get a life?
its hard to buy them according to your height. It's more about your leg length cos you want your knees in line with your hips. You can have 2 people of the same height but one with longer legs than the other. Your best going to a sport shop or the gym where you can actually sit on one and see which is the best size for you
How tall are you? I've got a 75cm one and I'm 5'7". I don't have mine fully inflated coz I liked a bit of bounce in it and mine was from the NCT - definitely much nicer than the cheap one a friend lent me.