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 Band Set Per Order. 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. Bands are 41 inches long and are made of high-quality latex material built to last a for years. A variety of exercises can be performed - For physical therapy, rehabilitation, pull-ups, stretching, strength training or powerlifting and etc. 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