This will be my third Grey Dyna Band (they break eventually), I normally work out in a Gym but also travel a great deal and often can't find a Gym to use or the timings don't work, I find that taking the Dynaband with me is an easy way to get a good work out. With a bit of imagination I can pretty much replicate my gym routine and the band is suprisingly effective. Best bit is that you can roll it up and carry it in your pocket. I can't think of any other piece of exercise equipment that is so portable and so effective, highly recommended.