Like all other screw-on filters from Breakthrough Filters, the X2 IR filter is delivered in a square plastic cassette with a red cleaning cloth included.
The cassette opens easily and filter extraction does not pose any issues.
What we would strongly recommend is that the manufacturer considers some sort of permanent marking on the cassettes – working with a few screw-on Breakthrough Filters in the field makes it a bit cumbersome when you need to figure out which cassette contains the one you need at the moment.