Ok, this may seem like a stupid question, but are these Blue or Black Gillette 7 o'clocks?
http://pureman.com.au/mens-grooming-tools/razor-blades/gillette-razor-blades-7-oclock-super-platinum-double-edge-blades-100
http://pureman.com.au/mens-grooming-tools/razor-blades/gillette-razor-blades-7-oclock-super-platinum-double-edge-blades-100