My test winner in comparison with all standard 5-Klingern on the market. Very good skin protection, thorough and long shelf life. The very high price into perspective, if some shaving recommendations are followed. See videos YouTube "razor sharpen". Here, although the blades are not sharpened, but cleansed of soap residue, stubble and dander. Result: At least 30 gentle and thorough shaves with a cartridge.
