The guide itself does a good and stable impression. It is delivered in shrink-wrapped. After unpacking I soiled my shirt, hands and wallpaper, since the circuit was covered with a black metal lubrication / abrasion, which can not be seen right away. The director seems to be packed completely uncleaned after manufacture. Even after repeated washing of aluminum surfaces, the material still stained with a gray abrasion. The sprouts are full of dirt inside. I find it impossible to deliver the product in this state to the final consumer. Unless one wants to damage its reputation as a supplier and manufacturer.
