This depends on what you have ordered and what shipping method you have chosen.
If you have ordered a small graphic such as a Name and flag, set of numbers, Data loggers or Visor stickers these will be supplied in A4 envelopes. All other graphics are either rolled or sent flat in our cardboard lined bags within large shallow boxes. This all depends on the shipping you have chosen.
If you have chosen express shipping all orders will be shipped flat and in there own cardboard lined bag. If standard shipping is chosen they will be rolled into cardboard parcel boxes.
I would always advise, if you can, choosing the express shipping option. Not only will your graphics arrive quicker they will need less heat to help apply them as they will be 100% flat on arrival.