For professional and precise grooming, look no further than Oster Cryogen-X Clipper Blades. Manufactured from fine, high-carbon steel and reinforced with a titanium coating in a 12 step process, Oster blades ensure superior, reliable cutting quality. Cryogen-X blades use innovative heat reducing technology and legendary sharp cutting performance to provide the user with the coolest and sharpest blade possible. Leaves hair .25mm.