The aluminum is of good quality and also worked well. The rubber inserts, I beg to differ, because after the third use them have been solved and they are also very soft. I nachgeklebt the gums with a neat cement and until now it holds. What are the long term but really bugs the not very powerful magnet that I have expected otherwise, as to the article image, a continuous magnetic strip to see was in reality but only 2 small round about 1cm large magnets per jaw are present.
Conclusion: If the continuous magnetic stripe and mounted the rubber neat, I would have 4 - 5 star given
