Mono Monday Challenge: Object

I've blipped one of these before but never seen eight all together in one place, looking as though they are lined up for a Le Mans start.  They are driverless robots that are used to deliver shopping (and there is the rather tenuous connection to the challenge this week; they contain objects) and over the last year or so have become quite a familiar sight on the pavements and cycle lanes around Milton Keynes.  I understand that to open them a code is sent to your mobile phone which you have to enter when the robot arrives.  Unfortunately, where I live is too far from the centre to use the service otherwise I would certainly have a go!