Pillow and ball comparison
I am a pediatric OT and have purchased both the ball and the pillow.  The pillow is firmer and easiest for consistent activation.  I use the pillow during my sessions for kids to sit on and focus. The ball is comfy and squishier but overall harder to activate.  It’s more challenging to consistently activate as well. I am going to keep this one at home for my nieces/nephews.
Rating: 4 stars