The Ambient QRTT is the 3/8-inch threaded tip for the manufacturer's QuickLok quick-release system. Ambient identifies it as the QRTT thread tip for QRT and assigns item number A80391.

It is the dedicated end piece that provides the specified 3/8-inch mounting thread on a QRT QuickLok connection. This listing is for the threaded tip itself, rather than a complete boom pole or a complete QuickLok assembly.