"Shells?"

She froze for a moment and reached out, picking it up and holding it in front of her eyes to scrutinize it.

To be honest, it was the first time she had seen this thing, and after looking at it for a while she didn't see a clue, so she asked the housekeeper, "Uncle Ji, ah, this, what are the rules?"

He took it and looked at it for a few moments and said, "Usually there's a number on it or something, you have to take it to a professional to see it to know, and I'm ...