Around the World Fitball Abs

Here's a fantastic ab exercise called Around the World. It's performed with a stability ball and is a great core exercise! Here's a link to order a stability ball: https://www.amazon.com/gp/product/B0187LW0A6?ie=UTF8&tag=kimmerkelfitn-20&camp=1789&linkCode=xm2&creativeASIN=B0187LW0A6