Oster® Professional blades are produced from the finest high-carbon steel and handcrafted to rigorous standards, providing unparalleled precision and performance. The blade cutting surfaces are then sharpened, finished and tested with proven Oster® proprietary processes, ensuring ultra-sharp blades that continue to stand the test of time. Available in multiple sizes for various cutting lengths and maximum versatility. Keeping blades oiled and using on a clean coat prolongs the life of the blade