Credo's Safety Corn Cutter removes callus with a precisely defined slice of max. 0,55mm. The handle is made of plastic whose raw material is renewable sugar cane. The special blade's facette-cut gives them an extremely high cutting ability. The blades are hidden under a plastic clip and only occure when the blade is applied to the holder. This makes the use of the Credo SafetyCornCutter safe. Credo invented this tool and holds the worldwide patents for this technique.