Metal stem tubes are what was on the Model A and Model T's when it rolled off of the assembly line. Stems are nickel plated but are NOT imprinted like our authentic style clamp-in style valve stems.
When you use a metal stem tube, you'll also need to order lock nuts, bridge washers, dust covers, and rim washers.
21" tube with the #127 style stem. This tube was originally used on 1928-29 Model A's and 1926-27 Model T's with wire wheels.