I m glad to have these cougar level 2 resistance tube. These are so helpful in making me fit.I think these tubes will work for a long time than any other brand tubes. My advice to all the gym freakers that they must use cougar resistance tubes instead of any other brand tubes . They are a good quality product at very low price available in India .I had cougar band previously due to not using it with door hook it gave up it's life but it's still strong,so had to go with other band but nothing is as good as this brand. and this new purchase shocked me they have made the product still the same and have also provided door hook with booklets of workouts!!!!!!Fantastic quality and good customer offers