Buy it new & now! with eBay Buyer Protection
GoFit Ultimate Burst Resistant Core Stability Ball is a fun, yet challenging way to stretch, tone and tighten your body. What makes the GoFit Core Stability Ball so challenging?
User Review: I use it for strengthening core muscles so they can counteract with my weak spine. I have scoliosis so need to be careful, but I find it fun to use.