Gilad Lord of the Abs. $25. In Maximum Abs Gilad uses a heavy ball to apply his 'Energy Transference Principle'. You'll be guided through a variety of functional moves perfect for sculpting your core without ever going to the floor. This workout not only shrinks your waistline and gives you 6-pack abs, it transforms your sports performance as well as everyday functional moves. NOTE: A 3 to 5 lb. dumbbell can be used instead of a heavy ball.