Good Performance :Replacing your old or broken razor head to get a good shaver again. For optimum performance, please clean regularly. Replace your shaving blades once every 6 months. Fit Models:Shaver Replacement Foil & Cutters Bar Assembly, Compatible With Andis #17155 & #17150 Shaver Pro Foil Shaver. Material:Fine quality material and strong structure, provide long service life.Safe and less irritation for most comfortable beard grooming. Easy to Install:Captures hairs growing in different directions for cleaner shaving.Easy to install, remove and cleans. For Andis Foil Shaver Replacement Head for Model 17280 ProFoil Lithium Shaver Replacemen Blades