I bought several of these as a replacement to original Rode NT5 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.
Plasatic material it's made of is flexible but firm enough to hold even a little heavier Sennheiser ME66 with K6.
In the end, if it does break, it's not expensive to buy another one. My best recommendation.