This is a great set of resistance bands. It comes with a variety of bands equaling different amounts of pound resistance. It also comes with the ankle straps if you want to use the bands to do leg exercises as well 2 handles to clip the band(s) onto for arm exercises. There is a bag if you care to store them in the bag and a small paper booklet giving you some examples of different exercises you can do.  These are a good alternative to free weights or weight machines. You can do so many different exercises with them and work a variety of muscles.  Keep in mind, if one band doesn't satisfy your weight resistance desire, you can double or triple them up, just hook them onto the handle or ankle strap and work with the combined resistance. I have been using these for a little over a month and stretching them pretty good during my use, and I see no signs of wear or tear.  Anyone looking to add a little variety to their workout or for an alternative to weights or machines, I would definitely give these a try.