This simple yet effective design allows you to extend your valve shaft by 30mm while still having an intact valve. To install, remove your existing valve core, thread it the end of the extender, then thread your extender on to the existing valve you want to extend. It's that simple!
It is a true natural extension of your valve - no more open valves as used by other designs that just thread over the existing valve stem with the valve remaining open. Easy to install and reliable in the field.