For smartphones & GPS. Fits cup holders up to 3.75 inch in diameter. Transfers to multiple vehicles. Fits most portable devices. 360 degrees rotation for portrait or landscape viewing. Expandable cup holder base included. Non-skid padding won't scratch. Arms adjust. Quick release. Supports swivel. Fits Phones: Maximum 4.5 inch [11.4 cm]. Limited 1 year warranty. www.bracketron.com. Made in China.