This holder attaches to your upper radiator hose to support the water coolant temp and EGT connections.  It products stabilization to ensure you get maximum life from the connectors, while also offering a convenient and fast way to disconnect them while ensuring that they don't come undone.  No more cutting zip ties! As an added benefit you won't ever forget to re attach the EGT after a pipe change, because the cover will be sitting in the seat as a reminder.  Cover is retained by a UV resistant o-ring for quick work.