The Foba CESTA Top Plate with 3/8" Wing Nut is part of the Combitube System. One end fits on the end of a Combitube section. The 3/8" thread can fit through the flat blade yoke hole on many fixtures. It is 79mm in diameter, 28mm tall.
CESTA Top Plate with Wing Nut for Combitube
One Year Manufacturer's Warranty