Just place your phone in the holder. It automatically locks the phone and has a stable triangular construction. Keeps your phone secure, even on speed bumps or uneven roads, easily from one source. It is super convenient and guarantees safety while driving. The three arms form a triangle that locks the phone firmly and makes no noise when you brake suddenly or drive on an uneven road. The soft silicone pads on the phone arms also protect the phone from scratches. Made of aluminum alloy, which makes the phone sit more stably and not easily deformed. The charging port is reserved at the bottom of the cell phone holder, so you can connect the charging cable to the phone even when it is connected to the holder. If you mount this bracket in your vehicle, you don't have to worry about running out of power. Very easy to install and remove. It is not necessary to pull out the entire ventilation opening. Move the vent until it comes out a little. Then insert the holder between the vent and push back. Fitment: For- A3 8V S3 2014-2019 Material: Aluminum alloy Color: Black Package Contents: 1 x Phone Navigation Bracket Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.