Ducati performance Air Filter

Hi, i have a new Ducati performance air filter that i wish to sell.
Been on shelf a good few years, i remember buying for my St4s but from memory i dont think it fitted it.
I have photos i can mail with measurements, even though the original box states st4s ?
If anyone interested pm me.
I am unable to load photos, yea not that good with IT.
Regards
Paul