It looks like a tough band and easy to use. Since I take core, I would have liked the band to be longer instead of so short. I also feel like some of the other reviewers, simple instructions on a piece of cardboard would be suffice. I also have no interest in streaming online training. On a positive note: it is well worth it and here is why: it is easy to use, slip it on and off you go not complicated. It makes me want to look for it and put it on even when I have no motivation., this is the most important thing. Sitting on the couch watching t.v. And saying I’ll do it tomorrow. With this it’s so easy it motivates you from the couch to get your exercise done. In the future, I hope they come out with long ankle bands, however, I will continue with loyalty to this company. I’m pretty happy.