Do you want bulletproof abdominals? We have plenty for sale, but they're very expensive ;). This class helps you to build up strong abs to help you protect the lower back and also stabilise the body when doing handstands, for instance. [n.b. Mark uses various props including some household dusters, a Swiss ball and an abs roller, but don't worry if you don't have these - there's plenty to work your abs before the props make their appearance.]