The Ultimate Bullworker Power Rep Range Workouts: Muscle-Enhancing Transformation Workouts That Build Your Body in Minutes A Day!, Paperback/Marlon Birch

The Ultimate Bullworker Power Rep Range Workouts Book Two, Paperback/Marlon Birch

The Ultimate Bullworker Power Rep Range Workouts: Muscle-Enhancing Transformation Workouts That Build Your Body in Minutes A Day! - Marlon Birch

The Ultimate Rep Range Max X2 Transformation Workouts: Build your best body ever!, Paperback/Marlon Birch

Power Iso-Bow Power Pump Method, Paperback/Marlon Birch

Power Max Transformation Method: The Scientific Way to Achieve Muscle Mass and Strength without Lifting Weights, Paperback/Marlon Birch