Full Ab Workout
Better Sex Workout - Ab Roll
The Ultimate Core Workout: Get Ripped Abs, Super Strength, and Better Performance - Men's Fitness
Bob Harper's Fat Blasting Circuit
Bob Harper's 20-Minute Circuit Workout. Love him. Love this
Try Bob Harper's 20 Min Crossfit Workout. You just need a set of 5-10 lb dumb bells.
Bob Harper's 20-Minute Circuit Workout