It arrived today, after ordering (by 3pm) yesterday.
Royal Mail special delivery
Well packaged - basically a medium duty jiffy bag, but there is nothing to get squished, so more than up to the job
The little black dongle in the middle is to be used if you have to send the box back for re-mapping (if you need to following, say, engine mods, bigger turbo or whatever).
Could also be used to set the car back to standard tune when you take it in for a service, if you wanted to