I really don't understand why so many people seem to buy the stuff from the bay, I just popped into my local car spares place, a proper one, with a piece of my old one the checked the diameter and cut the length off a roll.
Ok, so buying certain that can be difficult to find of very expensive on the bay is fine but with the poor reputation for lots of stuff I try to use it as little as possible. I know some items from the big suppliers may not be any better either . .