I bought several of these as a replacement to original Rode M3 mic holders.
They seem a little fragile, and threads are all carved in plastic, but two years and some, so far they serve their purpose very well. Nothing came loose, nothing broke. I do handle it carefully as I do with all of my equipment.
Plastic material it's made of is flexible but firm enough to hold Rode M3 without wiggling, which is relatively heavy.
In the end, if it does break, it's not expensive to buy another one. My best recommendation.