Created by Leslee Bender, international fitness presenter with over 25 years of experience, the Bender Ball provides an exciting, effective approach to traditional core training. No need for heavy, bulky or expensive equipment - The Bender Ball provides a total body workout and one that lets you feel and see results! The Bender Ball is portable, lightweight and very reasonably priced. It;s also great for placing into the small of your back when sitting in your chair.  This helps your spine keep its natural curves.