Zacuto Z-RE-FM2 2 inch Male-Female Rod Extension has been discontinued, here are some related products you might like:
The Zacuto Z-RE-FM2 is a male/female 2-inch rod extension. The extension is helpful for any situation where longer rods are required, including mounting heavy and long telephoto lenses. 1 rod extension only.
More information about Zacuto Products (Link to Zacuto Website)