Professional resistance loop bands of 3 different resistance levels √ Blue(15-60 lbs):Prefect beginning bands for resistance training . Also great for barbell band training. Well suited for high stretch training / stretching. √ Orange(35-110 lbs): Moderate level of tension for resistance training and pull-up assistance. High tension for banded barbell speed work, but great for traditional band work. √ Red(50-135 lbs): Ideal for pull-up assistance,Heavy resistance for heavy weight training, strong support in pull-ups. Perfect for speed and agility training such as push ups, squats, bench presses and other exercises. The best choice for Weight Loss, Strength Training, Rehabilitation Exercise, Improving Flexibility. Our professional pull up assistance bands suit for people no matter who is new in training or professional trainer. The exercises that can be done with training bands like Yoga, Pilates, Crossfit Calisthenics or Freeletics Workout ect, to assist with pull ups, Stretching, dips and pushups, whether upper body, legs, abdominals, back, arm.