On the basis they might come in handy one day theyre kept in the spares box.

The tyres also fit the three part wheels. The wheels with tyres are 'not' 12mm hex but the white hubs are 12mm hex possibly fitted to a GV Beagle at some time.
The non hex wheels look like they fit a long axle
I'd be happy to let them go to someone who's making up sets or equally would like to acquire the fourth tyre to make a set.
If the dimensions aren't clear from the centimetre matrix mat on which they are photographed, they are 1/10 scale buggy size.