The 2161-700 Stagger-Tooth™ replacement blade stays sharper 4 TIMES LONGER than a standard steel blade. Featuring high-carbon steel with DLC and Titanium coatings these blades are ultra-strong and resist corrosion. This patented blade is designed to easily erase lines of demarcation to achieve a flawless fade every time. Fits the 8148-700 Gold Cordless Magic clip and 8148 Cordless Magic Clip models. Made in America.