As seen in stores nationwide The Bender Ball allows you to work your core in ways you are unable to do so with standard floor crunches or large exercise stability balls Aside from feeling great about yourself and looking your best, a strengthened core (including defined and developed upper abs, lower abs and side abs, and a strong lower back) is important for correct posture The secret to great results is the Bender Method of core Training developed by Master Trainer Leslee Bender With over 30 years of international fitness experience, Leslee has presented throughout the world providing unique and progressive methods in all forms of fitness training