This is a fairly common sight in the Chinese countryside - boards laid alongside the wheel arches of parked cars and vans
It's taken me some time to find out what the reason is. I'm told on good authority it is to stop dogs weeing on the tyres, because of the belief that their urine degrades tyres and causes punctures. I'm not sure dogs really do that, or that their urine has any effect at all but hey, this is China! Facts often have no bearing on local traditions.
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