1.gps mount holder is retractable 2.With screw fixing made safer ... to remove Just unlock and pull the tab. Features1.phone holder is retractable,so it can holderany brand mobile ... phone..2.With screw fixing,it made your phone more safer on the holder.3 ... 150degree)5,Holder finish with rubber paint to protect you phone from Scratching,it is better than using sponge.6.Size ...