Use These High Quality Professional Grade Blades In Your Shearmaster Or Showmaster Clippers. Grooming At Home Saves Time And Money For The Owner And Reduces Stress On The Animals. Regular Clipping Is Important To Maintain A Healthy Coat.3 1/2 Inches Wide. For Close Smooth Shearing. Works With The Shearmaster And Showmaster Clippers. Regular Shearing Is Very Important To Reduce The Incidence Of Vermin Infestation Such As Fleas And Lice. Be Careful Not To Injure Animal Being Groomed.