1. Through the extremely coarse threads (to other pictures you can see the beautiful) always wobbles the pen - a straight impressions is almost impossible
2. Are the staples in metal bracelet not really quite loose, then it comes - even with all due caution - to the fact that the inferior metal pin bends very easily, because by the coarse thread never straight but always "nachgeschoben" wrong is.
For a clip has gerreicht with me, in the second of the pin is broken. The one can indeed change (for a star) but a bit longer would have allowed to hold the whole thing, my watchband is now first halved here and I have to look for another device. With us you say to something like "Glumb".