The Fine-Point Replacement Blades come two per container. The number of cuts each blade makes depends on the material used. You will know when your blades are getting dull because your cuts will not be as crisp. Replace dull blades for the best, most precise results. Fine-Point Replacement Blades, (formerly known as Standard Replacement Blades, but not Premium Fine Point Blades,) have green or gray protective caps and are intended for use with the green Standard Blade Housing.