SPECIFICATIONS: Material of Blade: High Carbon Japanese Stainless Steel Rockwell Hardness Scale: HRC 62 Made in Taiwan Fits Snap on A Series Clippers Compatible with all A Series Clippers, Heiniger, Oster, Andis, Conair, Wahl, Laube, Thrive and other clippers that use snap on / off blade system Cuts Hair 1/100" - 0.25mm Weight: 2.1 oz FEATURES: Rust Resistant Extra Sharp and durable blade Heat Treated & Ice tempered for longer life Detachable Blade for easy change and cleaning BLADE GUIDE: Can be used by barbers, hair stylist, dog groomers, Cat groomers, equestrian, cattle, goat and sheep herders Ideal for veterinarians for sanitary and surgical prep Can be used on Poodle Feet, face and creating patterns Great for Barbers to achieve flattops, bald fading and very close fades Good for Clipper-over-comb techniques and using with Snap-on Combs SIZE CONVERSION: Pet Grooming: #40 Cuts Fur 1/100" 0.25mm Barber / Beauty: #0000 Cuts Hair 1/100" 0.25mm