Dual purpose product for fitness or rehab markets. Good core-training tool for beginners who find an exercise ball too challenging. Depending on user’s position, rolls front to back or side to side. Also used extensively with children, seniors and during rehabilitation. The peanut is designed so that therapist and patient can sit on the Peanut together. Moderate instability challenge. Burst-resistant material. Poly bag packaging.Choose from 40-70 CM Balls.