Either that is an awful small case ..... or that's an awful big slot just to put a razor blade thru.
I'm also a CAGW skeptic, too.
The big question is, ..... how often (# days) does one need to change razor blades?
I don't know because I've never had to shave many whiskers.
My grandmother's maiden name was Fox.
(Cherokee/Shawnee genes ??)