Balance Disc Uses: balance disc is an important strengthening tool that can be used by adults and children. Hand pump is included. The simple act of sitting on the disc activates core abdominal and trunk muscles. Flex-or and ex-tensor muscles work in tandem to keep your balance on the disc while continuously strengthening and toning. Through these small, continuous motions that you are making, deep core muscles are constantly stimulated and enhanced. It is however, not meant for sitting only. You can actually stand, kneel, and do all sorts of exercises on it, thereby increasing the benefits of those exercise routines. The disc can also be used as a textured seat cushion for children that have trouble sitting still. The disc allows them to wiggle and move around while staying seated. Educators and parents alike report great success using them to help calm children who have a hard time sitting still; they have recognized that, for many restless children, these "wiggly" seat cushions have a calming effect. Balance cushions are also recommended by many health professionals for when it is necessary to sit for extended periods of time, such as long car, and airplane rides. The disc provides an ergonomic seating base to relieve pressure from the back and spine.