PROFESSIONAL-GRADE BLADE compatible with most StyleCraft hair clipper models Specialized Japanese Stainless Steel blade is perfectly balanced with superior sharpness Fixed Ace Taper blade has a slight angle where the tips of the blade slope down to help lift the hair when cutting and often used for bulk cutting Moving Ceramic blades are one of the sharpest materials and stays sharper for a long duration Still sharp? It might be time to replace your blade. Specialized Japanese Stainless Steel blade is perfectly balanced with superior sharpness. The fixed Taper blade has a slight angle where the tips of the blade slope down to help lift the hair when cutting and often used for bulk cutting. the Ceramic moving blades are one of the sharpest materials and stays sharper for a long duration. Both the fixed and the moving blades are compatible with most StyleCraft and Gamma+ hair clipper models. EASY INSTALLATION – To replace the blade simply unscrew the two screws on the back of the clipper, gently remove the old blade, replace with new one, and reinstall screws into machine. Make sure blades are aligned properly before turning on machine. Improper alignment may cause injury. As consistent with any Gamma+ or StyleCraft tools, all blades are fully adjustable to zero gap for the closest cut and finish. HOW TO CLEAN and CARE FOR YOUR BLADE - gently brush the blade with the maintenance kit brush to clear debris, spray blades with disinfectant (optional), apply 2-3 drops of oil directly on the blade and wipe clipper body clean with a dry cloth. Using the blade cover can help to avoid scratches and blade damage along with storage to help prolong the life the blade. We recommend, depending on your daily use, to change your blades every 1 to 4 months for superior sharpness. STYLECRAFT, THE ART & SCIENCE OF STYLING.