Ultimate Addons Pro Air Vent V2 Car Kit Mount with 17mm Ball Holder for Garmin Nuvi & StreetPilot SatNav's Ultimate Addons 17mm Ball Holder is designed to hold most Garmin Nuvi & StreetPilot Sat Nav Cradle Holders Ultimate Addons New & improved Pro Swivel Vent V2 Mount is easy to install and remove from most air vent Support arm in base of swivel vent attachment helps angle screen to the best view Fits most vehicle air vents, easy to fit with spring loaded grip, Max thickness of slat required is up to 4mm, Min gap required when vent slats open is 6mm Holder can be adjusted up to 360 degrees on the ball pivot mount, ideal for use in portrait or landscape mode