With Brexit a few days away, The deal contains new rules for how the UK and EU will live, work and trade together. But we don't know a lot of the detail yet because the full document - expected to be well over 1,000 pages long - has not been released.
What we do know is that it means:
No taxes on each other's goods when they cross borders (known as tariffs)
No limits on the amount of things which can be traded (known as quotas)