Our peanut ball is crafted from professional grade anti-burst material, and is similar to a standard stability ball. The difference being, that, peanut balls only move back and forth in one direction, versus the stability ball that is multidirectional. This provides more stability and control, and makes it ideal for therapy and rehabilitation use with children or seniors. The unique shape is also favored by midwives, and doulas, for use as a birthing ball.