The unstable nature of the Stability Cushion™ makes it an ideal tool for establishing and reinforcing balance, stability and proprioception while gaining core strength. Exercises can be performed in standing, kneeling, seated, supine and prone positions. Enhance stability, strength, balance, flexibility, agility, coordination and endurance with this effective tool. Great for use with everyone, from rehab clients to professional athletes and supports exercisers up to 350 lbs. Stability Cushions can be used separately, but are ideally used in pairs. Comes partially-inflated, individually packed for shipping. PVC free! Dimensions - 35cm.