Ordinary rubber bands for training, cool. I did not communicate with the seller. I have not trained with elastic bands yet. In Bulgaria came for a month.
Excellent elastic, I do not fall off my feet, although inexpensive. I bought the same red-I use the year, everything is fine. This is less tough, this is what I wanted.
A good rubber band, but sent heavier than ordered. This is the second, the first broke in a month 3. the seller is always in touch.