Are my Airpods real or fake?

So i bought airpods 3rd gen from the apple store last year, and i plan to sell mine now. so i checked every part of the airpods itself and got worried when i used a flashlight on the lid that it has no hardware. I saw this real vs fake vid that they did the same and said that its fake if it doesnt show any hwardware when u flash a light on it. But checking the other stuff like serial numbers, apple coverage, even the way it connects to my iphone, its all good. Should i be worried that what i bought was fake?