How to scrap Amazon or Similar Product Details Info

Now that we can scrap Amazon Product Data as per the tutorial but how do we extract the details from the inside of those link. Can it be done, if so can you show?

For Example: As per tutorial, we can search for shirt and extract list of shirts with corresponding pricing , but if we want to extract more details, like the color or size then we will have to go deep into each link. so how to automate that?