The Graphite Coregeous Ball is an inflatable air-filled sponge ball with a unique soft-stretchy "skin" that's used in conjunction with the Coregeous Core Exercise DVD to massage and activate your core and stretch your psoas. This special, soft massage ball allows you to gently and safely access your innermost abdominals. (approx. 22" round circumference and 7" high but can vary up to 1"). Home to many important organs and muscles, your abdominal area is sensitive and often overlooked. The Coregeous ball can help. Available now in a stunning graphite color, this unique, air-filled massage ball has a soft-stretchy texture that will help you gently access your inner abdominals. Using this soft massage ball consistently can relieve stress and tension through vagus nerve stimulation. Take back your power to heal your body with the Coregeous ball. No matter what your fitness level is, the Coregeous ball can help improve your mobility and prevent injury. It can be used both for preventative self-care and recovery. For maximum benefit, use this myofascial release tool in conjunction with the Coregeous DVD and other Tune Up Fitness self-massage balls in a holistic self-care fitness practice. With a circumference of about 20 inches, this ball is an ideal size for fitting into your gym bag to be used on-the-go.USED BY TEACHERS & PRACTITIONERS WORLDWIDE: a key therapy ball used in Jill Miller’s Roll Model Method & Yoga Tune Up fitness formats, used by over 500 certified teachers in yoga studios, gyms, physical therapy, & wellness centers across the globe. PORTABLE, ON-DEMAND PAIN & STRESS RELIEF: inflatable and lightweight, it packs easily into a gym bag, backpack, or purse to provide you with lower back pain or abdominal relief whenever you need it the most. RECOVER RIGHT & SLEEP TIGHT: the Coregeous Ball helps to improves diaphragmic breathing and encourages the body to release stress, setting the stage for post workout recovery, deep relaxation, and a healthy good night’s sleep. FEEL MORE AT EASE IN YOUR BODY: excellent as an abdominal and psoas stretch ball, it provides lower back pain relief without having to twist or engage the back muscles and aids elimination to provide constipation relief. A MASSAGE THERAPY BALL FOR CORE RELEASE: at approximately 22 inches in circumference and 7 inches diameter, the Coregeous Ball is an inflatable, air filled sponge ball that provides the gentle pressure of a broad, flat hand, making it the ideal psoas release tool for activating your core, massaging your abs, & optimizing the breath.