Amotus AM-35 Universal Adjustable Air Vent Car Phone Holder Car Cradle Mount Kit for Smart Phones and GPS Device Optimized design medium size, light weight of Amotus car phone holder ensures no burden to your car air vent Upgraded release button for simple operation - press button on back of unit to slide open the arms to pick-and-place the mobile phones and GPS Cozy touch the soft rubber layer protects your device from scratching Broad compatibility with stretchable clamp that is able to hold devices in sizes from 2-3.7 inch wide 3 year warranty Amotus will guarantee the quality of this air vent car mount for three years referring to its high quality