The Pure2Improve Balance Cushion is a versatile fitness training device designed to enhance your flexibility, core strength, balance, coordination and reaction training, as well as posture stability, mobility exercises, and rehabilitation. The balance cushion is made from high-quality, durable material and is extremely resilient, allowing it to withstand prolonged use over time. This multifunctional balance cushion can also be used as a lumbar support for office chairs to maintain proper posture and relieve lower back pressure. Additionally, the balance cushion can be a fantastic tool for use in classrooms to help children sit still and focus. Simply adjust the height level by changing the air pressure.