Replacement Wahl Clipper Blades, Professional Precision 2 Hole, 2 Pack. ??FIT MODEL??Compatible with Wahl professional Cordless Clippers Including : 5-Star Senior(#8148), Magic Clip (#8451),Reflections Senior (#8501), Senior (#8504), Power 100(#1919), Super Taper (#8591). Not Suitable For Trimmers. Advantages of the blade 1. The groove of the blade can reduce the temperature of the blade. 2. The hair falls quickly from the groove, which improves the efficiency of hair cutting. 3. The blade set can be kept tilted by adding oil to the tank. TIPS: 1. keep blades oiled. 2. the package contains screws.but it is recommended to use the original ones. ??FIT MODEL??Compatible with Wahl professional Cordless Clippers Including : 5-Star Senior(#8148), Magic Clip (#8451),Reflections Senior (#8501), Senior (#8504), Power 100(#1919), Super Taper (#8591). Not Suitable For Trimmers. ??Grooved blade design?: 1. The grooved blade can reduce the temperature. 2. It is conducive to the slippage of the delivery and improves the efficiency of the barber. 3. It is more convenient to refuel, and the blade group can be kept inclined. ??Adjustable 2-Hole Blades?: Blade set includes a fixed blade and a removable blade, both of which are designed with 2 holes. Warm Tip: The blade is made of carbon steel, keep oiling the blade. ??Easy Installation?: Just remove the old blade and replace the new blade, the installation is very convenient. Note: Screws are included in the package, if the screws do not match your hair clipper, it is recommended to use the screws of the original hair clipper ??Customer Support?: Please confirm the hair clipper blade model before ordering. If the trimmer blade set you purchased does not fit your machine, we will change it or refund it for free. Tips: 1. Keep the blades oiled. 2. The package contains screws, but original screws are recommended.