When you want a close shave but not too close, look to the Philips Norelco OneBlade Replacement Blade. The OneBlade is designed to shave any length of hair closely but not so close as to irritate the skin. The two blades are expected to last the average user up to eight months, based on two full shaves a week. These blades fit the Philips Norelco OneBlade Razor and can be cleaned with a quick water rinse.