United Scientific SRCI04 Cast Iron Support Ring, 4" Diameter
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Three inches is the diameter of the inside 3/8" in diameter.
There's probably 3/4" of a hole in it. We haven't tried it yet, but it could possibly be more. In my case, it is 5/8" steel
Selected User Reviews For United Scientific SRCI04 Cast Iron Support Ring, 4" Diameter
Keep in mind that the finish varies from one to another if you need more than one. The one that had a very smooth and shiny finish was the better one. The other one wasn't that smooth. My piece felt more like a plumbing pipe. I painted it, and now it is hard to tell the difference, but if you prefer natural silver, be aware that each is different in finish.
I love it.
This is exactly what was Featuring a metal penny head screw, this is beautiful, heavy, and durable. Thanks so much!.
The quality is excellent! With very expensive glassware in it, it gives you a sense of safety. On a rod, it has excellent stability due to its heavy and thick nature. The quality of this product will not let you down.