Adolfo explains how to use a punching bag. You can also learn how throw a proper jab. The punching bag is where you develop your strength and learn the combinations.
Want to master Microsoft Excel and take your work-from-home job prospects to the next level? Jump-start your career with our Premium A-to-Z Microsoft Excel Training Bundle from the new Gadget Hacks Shop and get lifetime access to more than 40 hours of Basic to Advanced instruction on functions, formula, tools, and more.