This is a quick design made to cover up the cable routing holes of the Corsair Spec-M2. I printed them using Colorfabb Ngen Flex and they fit perfectly into my case. You might want to glue them in so that they dont pop out when you feed cables through them. They are just meant to cover up the wireing in the back of the case so that it just looks a bit cleaner through the front window. Note that the holes at the top of the case are 3mm bigger then the bottom ones, so thats why theres 2 files for the small ones. They might look simmular but they´re not.