Shark super stainless double edge razor blades deliver a smooth, luxurious and comfortable shave. These premium blades are used barbers and wet shavers alike. These blades are know for their outstanding smoothness, sharpness, comfort and longevity. Many have told us these are the longest lasting double edge blades they have ever used. Manufactured in an ISO2000 Facility, these blades are world renown for their high quality. Care should be taken to not wipe this blade dry after use. Instead, simply shake the razor dry to avoid removal of the blade's coating.