... width 5.mainly be used in iphone Holder(mount) for mobile phone,PDA, mp3,mp4,GPSProduct Parameter ... make UNC-1/4-20 screw joint revolving scope to be big;6. Screw joint adopts international ... With strong adsorption of the suction cup, the mount can be firmly fixed at any smooth surface, ... And the head with pilot screw holes is to mount your GPS/PDA/Camera.Basic Function: Localization foundation ...