This phone holder is designed to be mounted in the hole under the radio of old model Lancia Ys. It is very convenient because it allows you to move the phone along this hole. For the actual phone holder I printed the one in this link: https://www.thingiverse.com/thing:3268454. The cork file contains a "cap" which serves to cover the hole in which to insert the phone holder, in which a 10x2mm magnet is inserted which serves to keep the cap in position. For greater safety it is best to glue the joint with double-sided tape. I leave the step files to be able to modify the project or create supports for other things such as glasses, glasses, etc.