Just put your phone in the holder. Lock the phone automatically and performed in a stable triangular construction. Keep your phone safe, even when you're on speed bumps or bumpy roads, easily from one source. It is super comfortable and ensures safety while driving. The three arms form a Triple-cornered that locks the phone firmlu and makes no noise when suddenly braking or riding on a rough road. The soft silicone pads on the phone arms also protect the phone from scratches. Made of aluminum alloy that keeps the phone more stable and does not deform easily. If you reserve the charging port on the bottom of the cellphone holder, you can connect the charging cable to the phone even if it is connected to this phone. If you mount this bracket for your vehicle, you do not need to worry about the power being turned off. 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 bit. Then insert the holder between the vents and push them back. Fitment:For-Audi A3 8V S3 2014-2019 Material:Aluminum alloy colour:black Package Contents: 1 x Phone Navigation Bracket Only the above package content, other products are not included. Note: Light shooting 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 +/- 1-3cm.