You know the one, you sit on it and bounce. . but actually, from a non-linear, non-subjective viewpoint, it's more like a big ball of wibbly wobbly. Hopping Ball 15" - Gym Ball, Sport Ball, Bounce Ball, Hoppity, Hop Ball,Red . If you don't know how big 36" is, get out a measuring tape before you order this. I remember commercials for a toy that was like a big rubber ball you could sit on and bounce, and there were handles at the top to hold on to. When the Bounce Ball hits the floor, the molecules compress and rapidly decompress creating a spring reaction. Customers who viewed this item also viewed these products. The Best Core Workout Routine. Thanks for making me think of it! Anyone do that, or just us? I work in a home office, so there's no one here to laugh and point, but I use both a balance ball chair http: You can even lift your feet off the floor as you go up. Anyone know what they were called? My office area has been invaded by Hippity-Hops. Leave a Review Ask a Question. PEOPLE ARE READING 1. Already have an account? But I don't think those would really work as well as the Hippity-Hop, even if it had a handle attached. Do Exercise Balls Work? Pregnancy Workouts With a Ball. Lie your right side waist on a stability ball and prop your feet against a wall for balance. Weight Training With a Stability Ball. The Best Core Workout Routine. Vary your arm movements as you bounce, reaching up and down or front to back. They're supposed to exercise one's legs while one is sitting. As you feel more comfortable, bounce a little higher. Whether you call it a stability ball, Swiss ball or balance ball, you can use it to train your core.