You are certain about the exercises you want to do for your abs, legs and arms but are not sure about what you do for your back? Well, we have been there too. That is when we realised, a lot of us work out at home and do not have heavy equipment at our disposal. All we have, at the most, is a set of dumbbells and a pull-up bar. Toning and shaping your back with just these? Is it even possible? Yes, it absolutely is! To build a big strong back, you need to consider how your back is structured.