3mm shock shaft o rings

[Crazy L]

I can't remember if I've asked this before, but I need some of the aforementioned. Now, before some smart arze says something funny, I've been away a while and I'm rebuilding an old model. Also, I do know that most modern buggies have a larger diameter shaft these days and so 3mm is so last decade.

Anyway, any info would be apprec'd, ta