What 3d printer part was it? I've been shopping mainly on aliexpress for my parts since amazon.ca has a very anemic offering (and what it has is basically drops

What 3d printer part was it? I've been shopping mainly on aliexpress for my parts since amazon.ca has a very anemic offering (and what it has is basically dropshipped parts from aliexpress anyways). But I'm curious to know what I should be cautious of. I always thought most 3d printer parts are usually not "genuine" and made by a 3rd party anyway.