For other power strips, the screw holes are easily broken, the bar is shaking because there is groove 2 equatorial screw and / or the whole bar is clunky. This bar has a slender but stable base. Thanks to the 4 holes at the corners wobbles nothing more. The distance between the doses is a good compromise and also allows thicker things without being too big. The Parental Control I find easily. I have a 3-way bar this series without any problems have occurred a long time in use.