Ceramic edge clipper blades hold their sharpness longer and require less sharpening. They cause less friction and conduct less heat so they run 50 percent cooler than standard blades. Full cut blade can be used as a finish blade for a size 4 Skip Tooth blade, for body work on short-legged Terriers, and for puppy cuts. Use less coolant and clip faster than with standard blades Reduced risk of friction burns Ceramic blades increase productivity Rockwell Hardness rating of 65 means they hold their sharpness longer Blades work with Andis, Wahl, Conair,and Oster detachable clippers If you groom dogs you will love this ceramic clipper blade size #4FC. Perfect for finishing work, body work on short-legged Terriers, and puppy cuts.