The swivel seat is a soft flexible turning disc. It helps you to spin on your seat without painful jarring or twisting. It can be hard work lifting yourself into a turn, so let this swivel cushion do the work for you. The underside is covered in an anti-slip material for added safety and the top is lightly cushioned for comfort. The swivel seat is also a helpful aid post hip or knee operation. For use on any flat chair or seat.