Had previously been a Alukamm and hoped this one would have the same quality. Unfortunately, the ridge is much thinner and thus less stable than my age and the Mazerial seems to be very soft cheapest kind. In addition, the teeth are almost dangerously sharp edges. Have them first 5 min. pulled over a sanding sponge, now go. Too bad, would have paid for better quality like more. The already mentioned advantages of a Alukamms he has, except for the said defects.
