Thanks, J Flanders.

You saw more differences. Thanks a lot.

I Think this pedal is not original, because I found it now others sales, with same characteristics:

https://produto.mercadolivre.com.br/MLB-1553210172-pedal-electro-harmonix-big-muff-pi-fuzz-made-in-usa-_JM?quantity=1&variation=57663365216#position=1&type=item&tracking_id=71d7e851-48ee-45f3-b5ae-fe18813fbdd0
*This salesperson had 3 identical pedals!!

https://produto.mercadolivre.com.br/MLB-1524211565-pedal-big-muff-eletro-harmonix-_JM#position=22&type=item&tracking_id=d000e883-58fe-4e94-8be0-8b25f29e140f

https://produto.mercadolivre.com.br/MLB-1557760509-pedal-big-muff-_JM#position=11&type=item&tracking_id=d000e883-58fe-4e94-8be0-8b25f29e140f

https://produto.mercadolivre.com.br/MLB-1521375351-pedal-big-muff-electro-harmonix-usa-_JM?quantity=1&variation=56498832821#position=46&type=item&tracking_id=d000e883-58fe-4e94-8be0-8b25f29e140f
*The latter the sticker is pelling off*

I think these pedals are copy, not originals. This is not allowed in website “mercadolivre”. But the most buyers do not know this pedals are copy. I preferred to analyse here, the forum manufacturer´s.

Thanks a lot.