My roommate has this ball, just smaller than a basketball, that weighs 4 pounds. I've looked around and I can't find what you should use it for. It's firm, not squishy. Anyone have one, know what it's really called, and what I could do with it? I need to add some strength training to my treadmill routine. Will this thing help?
What she said.
I didn't add "exercise" when I googled. DUH!! Thank you, I'm trying so hard to lose weight I guess some of it is coming off of the brain