[bhaak]

If your question is about getting the contents of a Lego set, it is easier than it used to be.

First, every building instruction manual these days has the full inventory of pieces on the last pages.

Second, you can download a PDF of the instruction without owning the set. For example on page 43 on this one https://www.lego.com/en-us/service/buildinginstructions/7519...