It is a mobile container designed for 3d printing. Iphone 13 and Iphone 14 can be insert into the container. After you put your phone into the container, press it, then it moves inside, and be locked inside the container. If you want to get out the mobile out, press the mobile again, then it will move out at the force of spring that assembled in the component CPRTY02L12-a “push to release” mechanism kit. It is similar to SD card slot. https://youtu.be/HBjuyNU01hs The stroke is 12mm. P1,P2 and P3 can be 3d printed. CPRTY02L12 is a DIY craft that you can find here: https://www.tanerxun.com/product/push-to-release-retract-mechanism-kit-type-2 You can fix the whole container onto anywhere with two M5 bolts.