Sun Visor mount has the male 17mm swivel ball pattern thereby allowing for optimal viewing positioning. An ideal alternative mount for California and Minnesota drivers where windshield mounts are banned. Sun Visor mount location is somewhat hidden thereby reducing chance of stolen GPS or car break-in. Conveniently fits in your pocket making it the perfect travel accessory for mounting your GPS, Easily transferred from one vehicle to another, Can be used on driver side sun visor, but not recommended as the driver's side sun visor blocks the view of the road. Mount to the far left side of the passenger side sun visor for maximum visibility, even when the GPS car charger is connected to the device.