The sample file is for the CMF Watch Pro 2. It's 22mm wide and requires 1.5 mm watch pins for the installation to the watch and a 22mm wide watch band lock with 1.8mm pin. I used this one from Amazon: https://www.amazon.de/dp/B09VP9HPTW
 

With the included script you can adjust almost anything concerning the band. Width, length, thickness, hole size, hole count, hole positioning, pin diameters…..