Vibration damper, top part for Prusa i3 mk2

NinjaFlex / semiflex) Anti vibration top part for "Vibration Damper for Prusa i3 mk2"
to use together with http://www.thingiverse.com/thing:1707045/#files
this is made to fit on top of the large size vibration damper (tight fit!)
See example picture in thing files folder!