Use the product with a T300 like base.
Nice add-on: non-slip-foam option to enhance the phone grip
– Easy to install on a your base via existing threadings
– Use original screws from your base (don’t need to tight so much)
– Set of squares to secure wider smartphone or to maintain it if the base roses
You can see a demo of main features on the begining of the video made for the CSW phone holder. It shares the same top of the part where the phone is held: