Kelly Coffey-Meyer's 30 Minutes to Fitness Lean Body Circuits has two 30 minute workouts that blast fat, improve muscle shape and definition and elevate overall fitness gains. Both workouts are made up of athletic drills, upbeat boxing combinations, lower body weight exercises and upper body strength training. These challenging and effective drills are performed back to back to give you a leaner, fitter, stronger body-quicker! Also includes premixes for you to customize to your own ability.