Use BOSUBALL to work on your Butt/Legs/Thighs and also ENGAGED YOUR CORE MUSCLES the whole time to help you stay steady and have better balance.（請問畫素很差嗎還是是我手機有問題） Tags: 8 comments 77 likes 3 shares Share this: Fit By Saria About author not provided A Lifestyle Page Focused On Ways To Live A FIT, HEALTHY and SIMPLE LIFE. 47433 followers 34650 likes "https://instagram.com/sariachen/" View all posts