Dlux Dravtech shock preload spacers

Preload spacers for Dlux Dravtech / Traxxas big bore shocks.
I made these to work out the preload i wanted to add. They slide on without removing the shock. I intended to replace them with the rubber O rings supplied with Dravtech shocks once i decided on the amount of preload. they dont move or come off when rubbing against a rock, so i`ve left them on for now.
2mm,3mm and 4mm thickness to download.