I tried a search but all that it came up with is a competitive brand:
https://duckduckgo.com/?q=KOZAK+Aero...el+Caps&ia=web
It also uses a center adaptor instead of an expanding hoop.
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.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
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.Because much of what is in the published literature is nonsense,
and much of what isn’t nonsense is not in the scientific literature.
-- Sabine Hossenfelder
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