BackJoy's Patented Orthotic Cradling System was designed solely to relieve pressure and strain on the back. In doing so, it enables you to sit with your core engaged – enabling you to sit for long periods without pain or injury. BackJoy is designed to work like a personalized orthotic for your unique back. No matter how you sit, it will adapt itself to your position. Whether you naturally slouch, sit up straight, or anything in between – the BackJoy will move with your body to enable more comfort, better posture, and less pain. Don’t be fooled…although the BackJoy is not very big in size, it is VERY powerful in its results. Its patented design is based on years of research and is designed to be simple to use yet incredibly effective. And it’s not just a simple cushion – it’s active and reacts to the way your body moves, while constantly adjusting and allowing your pelvis to move freely which lets your spine go where it wants to go – so you won’t hurt. It is based on a three-step process that tilts, cradles, and lifts your pelvis to attain perfect posture and a pain-free back.