Mamiya RZ67 Professional 220 Film Back - Untested Purchased for use in a 3D printed camera project, but I accidentally bought the wrong version. I don't own a Mamiya camera, so I can't test it. The dials move smoothly and click well. The metal slide rails are clean, with no apparent damage or mold. The film rollers are also in good condition. The foam is fragile, so I recommend replacing it before use. Returns and exchanges are not accepted. If you have any questions, please feel free to ask in the comments section. Thank you!