Quality!
Years ago I got a front mech from Oslo to Stockholm. Got the impression the seller went to the kitchen, grabbed a box of biscuits, ate the biscuits on the way to the post office, stuffed in the front mech padded out with a bunch of receipts found in the post office bin, used the tape at the post office to finish the packing and slapped on a bunch of stamps. At the time it was hard to give 5 stars for packing, but I realised later it was utter genius.
BTW the bags in the wine box when re-inflated make great air padding cushions too for wheels and frames!