i.Trek Spring Vent Mount with Universal Bracket/Cradle for Smartphones (Black) Spring clip vent mount with Garmin 17mm ball joint (compatible with horizontal AC vents) Universal bracket for smartphone and GPS devices up to 5" screen size (Grip will open up to 4") Universal bracket fits Garmin 17mm ball joint (other Garmin mount compatible) Heavy duty spring clamp holds device securely. can be used vertically or horizontally Quick release for easy installation and removal of your GPS or Smartphone, compatible with Garmin Nuvi, TomTom, Magellan GPS, iPhone 3GS/4/4S/5, Samsung Galaxy SIII, Note 2, HTC One, LG, Motorola Razr Droid, Nokia Lumia Windows 8 and Android Smartphone