Collapsible Silicone Microwave Hot Air Popcorn Popper Bowl With Lid and Handles (Tan)

Is the lid supposed to fit perfectly on top of the popper before cooking popcorn?

how many cups does this popper make

Does this one come in a box with the features and benefits? It's for a gift, and I won't be there to explain it to the recipient.

How much popcorn do i use