... just put the mount on flat smooth of car or any other place with smooth surface.2. Just hold it in ... Close:50mm,Opening:109mm.Can be use for holding GPS,camera,Mobile phone,and laptop.3. rotative ball pan 360 ... suction cup withstand high temperature,from 120C to -40C. And the cup suction is very strong,reach to50LBS.5. ... Delivery lead-time:3-5 working days universal car holder for PDA,GPS,3G PHONE,CAMERA