Don't use Oponeo.
They promised the tyres they supplied would be less than three years old.
>All the tyres that we offer are new, and of an age not higher than 36 months.... The high online shop standards of Oponeo.co.uk are completely in accordance with tyre manufacturers' guidelines which acknowledge tyres not older than 3 years as brand new.
Two of the four tyres I received were nearly four years old and Oponeo refused to replace them and only offered £10 per tyre compensation which was less then 10% of the cost.
Fortunately for me I was able to recover the full value through my household legal cover.