Different pros: The workmanship is excellent. The packaging is the most ordinary, it is impossible to establish whether someone has used it before. It is also not yet entirely clear how to use it, because the size is suitable, but it squeezes a lot and it can be difficult to breathe. The main advantage is high-quality Velcro, I have not seen such for a long time. They swear that the manufacturer is Germany. Cons below: Package. In general, there is no information about sizes on , what do manufacturers think? And, probably, about money, millions think, let's send rubber bands for money? . I spread the sizes from the label.