A 20-Minute Exercise Band Workout to Build Strength
nytimes.com
A 20-Minute Exercise Band Workout to Build Strength
Build Muscle Without Weights: The Complete Book Of Dynamic Self Resistance Training Exercises (burn fat, abs, muscle building, exercise workout 7)
amazon.com
Once you have your rings, head over to the website gmb.io for some excellent ring-training instructions and a host of gymnastics and functional bodyweight ring exercises.