the exercises with this exercise band seem to me to be useful and effective and. However, I had little opportunity to examine this closely, since the tape (blue) is on the second day of use already torn. me is not to have deliberately handled it wrong or that it's tied with a sharp or pointed object come into contact. My body weight is about 90 kg. Too much for this exercise band ??? or a material error? for this short life, a reduced price is too high, or ???