I've read before that this fibre spacer is rarely found when you take the dizzy apart. They have just worn away to dust. So, they never get replaced because you don't realise they should be there. Exploded pics of the unit doesn't make their presence obvious. Good to see that they are available again, but at huge cost. I doubt if many will be stripping down their dizzys to fit them. Once you know what material you can use for this spacer I'd think they could be knocked out for pennies. Just a hole punch and a pair of good scissors should leave you with something that will do the job for many thousands of miles to come.