What I like about this part of the full Zurüstmaterial which allows you to fix the carrier in different ways. What I do not like that the aluminum is painted black and not anodized, it will be scratched very soon and look unsightly. The porter I have in the form of identical unvarnished quite some time from another wheel in operation and based on the good experiences I have ordered such a part again. However, the screws begin now to rust and whether the device is really cope with the recommended maximum load of 25 kg in the long run in the stars. Construction is easy, tool, however you should have on hand. Total outweigh the benefits, a Universal Porter in useful processing at a low price.