Quality ranges 'okay' for a

The dumbbells were well packaged and delivered quickly. All parts of the set are packed at the factory in plastic bags and at least somewhat protected against scratches. The case holds together the set, however, include both individual weights or a star before closure of the cut out. For the transport or storage but perfectly adequate. Who finally drags the things around it last? Exactly, no.
What I find, however, very disadvantageous is the poor quality of Star closures. Once stored the barbell, the closures are loose and rattling the weights. This sucks pretty, especially since other manufacturers better. In addition, the chrome layer peeling something. While I see no underlying material, but the drop on the Isomatter one or two silver crumbs will ever be. Does not interfere, but need not be.
The price of the bar seems a little (+/- 5) to vary, wait a bit and watch so worthwhile.

Good luck with your training!