The phrase "several boxes" means more than two or three boxes, but not a lot of boxes.
Sentences with «several boxes»
This year, we're going middle - of - the road: I bought several boxes of store - brand «fruit and grain» breakfast bars on sale. (thelunchtray.com)
I also went to an Asian grocery and bought several boxes of vanilla Swiss cake rolls. (thelunchtray.com)
She received the royal treatment in the locker room with her name embroidered on her locker that was filled with several boxes of balls along with food and beverages. (sportstarsmag.com)