This A-Tach GMC Terrain phone mount solution consists of two separate parts that are brought together to create a secure mounting solution. The first part is the vehicle mount which is designed specifically for the listed GMC Terrain models. The mount comes with four small, predrilled holes in an AMPS hole pattern and can be used with many brands of phone holders.
The second part is a phone holder or device holder. A phone holder is not included when purchasing the mount only. See the "Device Holder Options" tab for some great device holder choices.