Take the #spibeltchallenge and we'll send you a FREE SPIbelt! Post a video on our FB wall of you balancing on an exercise ball (unassisted, on your knees) for 5 seconds and we'll send you a belt. It's that easy! Don't do this if you have a pre-existing condition such as knee or back issues and make sure to have a spotter! www.facebook.com/spibelt













