Very happy with the product: pregnant and being tailbone hurts I could not sat on a chair, this cushion has allowed me to sit down without pain almost. The only gripe is the protective blue cover, quite tense and encompassing the entire cushion. I had to remove it because it hides the beneficial effect of the cushion (hole in the middle). After 4 months of use I continue to enjoy it every day (because the sores coccyx are always extremely slow to heal). Anyway I recommend it.