Draper's Strength Heavy Duty Pull Up Assist and Powerlifting Stretch Bands Add Resistance for Stretching, Exercise, and Assisted Pull Ups. Free E-Workout Guide (Single Band or Set) 41-Inch From light to heavy resistance (2-200 lbs) - To choose the best bands for your needs, check out the band tension chart in the images to the left. A variety of exercises can be performed - for physical therapy, rehabilitation, pull-ups, stretching, strength training, powerlifting and etc. Bands are 41" inches long and are made of high-quality latex material built to last for years. These high-quality bands are very durable so you can use them for years to come. 90-DAY NO QUESTIONS ASKED MONEY-BACK GUARANTEE, FREE LIFETIME WARRANTY and FREE WORKOUT e-GUIDE with every band purchase