The adapter rings are made of metal and can fit up now wonderfully without sanding or scraping on each lens that's me come across so far. Unfortunately, the filter holder is made - of course - made lower quality plastic and * very * rigid. The filter can be inserted before difficulties and are too tight ... for my taste too tightly. As a precaution, I use my filter exclusively with the original holder Cokin H270A from the set, which fits perfectly with the rings, is far more flexible and tend to scratch the filter less. Of course, the replica filter holder would exactly, but I prefer for this reason the originals.
