I also have a yoga ball. The specific material of PVC in Yuanyang is unclear, but it is non-toxic and tasteless. According to the shape of the ball, the baby can't bite badly. Lick it twice at most. Hehe, let the baby play. Just don't fall. Where did you buy it? I'm in an online mall called Fun. Their yoga mats are very good. I have nothing to do with the baby. I was raised from an early age.