You can thank Google image search!Atlantic59, you posted one of the examples of a metal tube in my collection.
That image actually was found on a commercial website:
Pre de Provence Metal Tube Roller Key
Say hello to the answer to your prayers. The Pre de Provence Metal Tube Roller Key was designed to squeeze every last morsel of product out of the various tubes you own. Serving the USA and beyond since 2001. We ship worldwide.
www.classicshaving.com