The file 'Sliding Tube Mousetrap 3D Printer Model' is (stl) file type, size is 19.3KB.
A 3D printable version of this > https://www.youtube.com/watch?v=XTok6sfxWLE&t=106s
Parts will slide smoothly only if your extrusion / e-steps is properly calibrated.
Feel free to tinker this >
https://www.tinkercad.com/things/2GmMwLyzV8I