Hello, I just began using the Shark Stainless Steel Double Edge Blades. These blades are EXCELLENT! They give a smooth easy shave. Just a couple of passes with a high quality tallow based soap,which is what I use, andcI get an exceptional shave. I began using a blade last week, I'm an everyday shaver, and am still on the same blade. These blades last as well. I'm very pleased with . New England Shaving Company. They always treat me right! Thankyou.