Looks like all known suppliers sell the same crap once again?
At a price of around 10 Euros per pair they aren't really expensive, but stuff that's damaged almost immediately after it is fitted on the bike is a real p.i.t.a.
You know, I'm not that kind of guy that spends money like water, but if those were available made from long-lasting, good rubber for let's say maybe 40 Euros or so, I would happily spend that money instead of changing the cheap ones twice a year.