Coregeous® Ball - Iris
The Iris Coregeous® Ball is an inflatable air-filled sponge ball with a unique soft-stretchy "skin" that's used to massage and activate your core, relieve neck tension, stretch your psoas and offer stress & tension relief throughoutthe whole body. (approx. 22" round circumference and 7" high but can vary up to 1").
This is my personal favorite.
The body is interconnected, and the gut is one of its central systems. However, many people don’t take the time to care for their stomach area, opting instead to live with chronic pain and discomfort. Give your abdomen the attention it deserves with this unique, air-filled soft massage ball. Its soft-stretchy skin offers a gentle way to access your inner abdominal muscles to help relieve pain. Proper abdominal self-massage can stimulate digestion, relax muscles, and improve respiratory function. It can also stimulate your vagus nerve, alleviating stress and tension.
Visit: https://www.youtube.com/watch?v=hU5kqpTbynk for a video on how to use for the abdominals