Our Barre Vida 9" exercise ball is used by physical therapists, athletic trainers, personal trainers, and other professionals in rehab clinics and gyms for post-surgery strengthening and exercise. This soft ball is made from PVE material and supports a range of varied and effective exercises designed to increase core, back, shoulder, and full body strength. Tactile, stretchy material makes the ball responsive to the touch and non-slip when placed against a hard surface. It is perfectly suited for users of all ages and versatile enough to be incorporated into any strength, conditioning, or toning routine.