"Supports Varying Heights": The pull up assistance bands set feature a durable adjustable nylon strap, ensuring a just-right fit for any height of the user. Easy to connect it to any door pull up bar/chin up bar or pull up station, just adjust the length to match your height or adjust the length to vary resistance. These pull up resistance bands will help you achieve the standard pull-ups to build strength. Perfect home gym workout equipment for men women older and younger. "Tailored Pull Up Bands for Fitness Pros and Beginners": Including 4 resistance bands for pull ups, 2x55lb, 2x75lb, enabling up to 260lb resistance. Whether beginner or advanced, these pull up bands adapt to your strength level. If you have a hard time getting chin-ups, it allows you to perform pull-ups independently, completely, and correctly without any help. If you're advanced, the pull up assistance bands will help you add additional umph after muscle fatigue. "Complete and Valuable