KYLIN SPORT 41 inch Resistance Band Heavy Duty Pull Up Training Yoga Pilates Elastic Loop Stretch (Single Band) for Crossfit Gymnastics Power-Lifting From light to heavy resistance( 25-65LBS) - 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 Application: effectively improve muscle strength, physical performance, and flexibility