Oster 7F Cryogen X Ag ION Blade• Replacement clipper blade constructed from cryogenically treated carbon steel.• Advanced Ag ION antimicrobial protection is built into the blade surface.• Ideal for producing a smooth finish on necks & heads.• Universal snap-on blade, should fit most types of Andis, Oster or Wahl clippers. The Oster 7F Cryogen X Ag ION Blade is a high quality carbon steel blade, cryogenically treated to keep edges sharp. The blade features advanced silver-based Ag ION antimicrobial protection to help prevent the growth of bacteria, mould & mildew. This quality universal replacement blade will fit any Andis, Oster or Wahl clipper with a snap-on blade mechanism. Please note that we only recommend 10 or 15 blades to be used with attachment combs as any other blades may be damaged. Groomers Expert Tips: This blade has undergone cryogenic treatment, meaning it will hold edge better & stay sharper for longer. Please browse our full Oster Blades range.