It fit both the short filters (eg. Color filters for black and white photography) as well as the longer (eg. ND filter or Grauverlauffilter) into it.
The double-backed (strong velcro) belt loops fit the way also to the class Backpacks from Lowepro, so I filter set can be attached to the backpack when needed outside.
This is my second case of Cokin, I have. The first I bought many years ago. The old seems to me that to be minimally better: The felt inside a softer, more flexible, the lid of the case better closing. However, there is only one marignaler difference, which is only noticed because I had both studied side by side.
Seem to me such accessories generally overpriced, but you can not switch to other bad products to. I prefer the one star off for me for the price-performance ratio. The case itself works exactly as it should be.
