Review on 9-Inch URBNFit Pilates Ball For Yoga, Barre, Physical Therapy, Stretching & Core Fitness - Small Exercise Bender & Massager Ball With Workout Guide To Improve Posture And Relieve Back Pain. by Timothy Bobbert

This is a nice, well made ball if it is what you are looking for. It did not mention anything, that I could see, about needing to be inflated. I thought it was going to be like the other one that I got that looks just like it. It did not need inflating and was hard and sturdy. This needs inflating. My husband said it wasn't too bad to do though. It comes with a white peg that plugs the hole, but nothing to inflate it with. Being that it inflates, it does have give to it when you lay on it.