These in the link.
Bought them from 4wdbits but have put my rims/tires together while totally forgetting about them- doh.
Chances are i'll never use them so will sell.
all four of them for $40. +$5 for postage if you are not in the auckland/hamilton area for collection.
Brass body with rubber washers to seal and brass parts are sealed with o-rings.
-Nathan.