If you spend a long-time in a seated position, our 3D Inflatable Seat Cushion is fit for you. It provides adjustable firmness for supporting good posture and the natural curve of the spine. It increases 30% of the body surface area to relieve weight, stress and pressure on your hip and tailbone. There will be no more numbness, as it is effectively reducing the possibilities of tailbone pain and improving the sedentary exhaustion.