BUT BEWARE !!! Sorry, no measures of the filter holder are given.
I am using an original Cokin filter holder with several filters already for 35 years and I have to connect bought this set of additional lenses, for whose diameter I still had no adapter rings.
Now I have to say, unfortunately, that all my old filter and also the original Cokin holders are much smaller than this set. Whether Cokin now even sells larger filter, I do not know.
My good old pole. Color. Special effects filters I can not use herewith.