Joe,
Thanks for your review of our connectors. Since all of our products, including our connectors, come with a full 1 year warranty. So if anything fails on them, we'll make sure to replace them for you. Since they're made of solid brass or stainless steel--with no plastic, they should last a very long time. Just remember to spray some silicone spray in the inside of the female connectors twice a year. This will keep the bearings moving smooth.