I bought three of these cases and the slots are not removable. With the supposedly removable oil slots I was also hoping to use the cases for other purposes but that in not possible. It was disappointing. They are also slightly smaller than the given. measurements. Perhaps I was sent an older stock. The video showed the the oil slots removable for washing and that is what I thought IPaulin was ordering.
I like all the other products that I have purchased from Oil Life and am very satisfied with them.