These are great and can be taken anywhere. It combines cardio and weight training/toning, depends on what you are looking for! My set came with 4 or 5 bands all of which are different resistance. I think you can add them up to being 160 lbs or something like that. I am a stay at home mom and love it, but couldn't seem to get out of the house to go to a gym. I do them every morning and every evening. Only takes about 15-20 mins but makes you feel really good. Just thought I would share!