
This is a pack of fifty double edge razor blades in Swedish Cr13 steel, coated with platinum instead of PTFE, and ground to a thirteen newton edge: keen enough to cut cleanly, gentle enough for skin that reacts easily. One blade cuts level with the skin, never below it.
A 13N edge cuts cleanly at the surface instead of tugging. A single blade cutting level with the skin is the mechanism behind fewer bumps and fewer ingrown hairs; a multi-blade cartridge cuts below the skin, which is where both start. Cr13 steel holds its edge well, and a platinum-sputtered coating keeps the blade smooth against skin without relying on PTFE, which some sensitive skin reacts to.
These are the same safety razor blades that fit the Kronos Safety Razor, and a spent one belongs in the Blade Bank, since a used blade is still sharp enough to cut through a bin liner. Nothing about this pack is decorative; the refinement is spent on the edge itself.
A blade costs around fifty pence to replace. A standard double edge blade fits any safety razor built to the same long-established dimensions, the Kronos razor included, so this pack works across brands.

