Unfortunately I can not even move cleanly as an experienced gymnastics and strength athletes only a string, Level V (5) is really only for enormously bulky or extremely hard trained strength athletes usable .. 5 stars gets the product but because of its excellent processing and overall effectiveness. I kept him for the handles to give me a lighter version (red-level 2 or 3 I think) to be ordered and then built my two training devices it, and if I should be much more, I can also Bourdeaux-colored strings again use or the colors / resistances even mix. Supersport machine to build especially erector spinae, Delta, Latissimus and arms and many other games and carefully targeted to complement the exercises with weights. Thumbs up!