The Oster SuperSteels Blade features a revolutionary Black Oxide coating that improves wear and corrosion resistance (rust inhibitor) allowing your blades to stay sharper longer. The blade is 1/100"- 5/64 0.25mm-2.0mm so you can give your pet a professional cut, as if he went to the groomer. Oster, Happy pets. Happy people. Features: Rust inhibitor Includes: 1 Adjustable Replacement Blade (adjusts 5 sizes w/ 1 blade) Intended For: Pets Dimensions: 3.75" w x 5.5" h x .75" d, 0.5 lbs Cautions: Blades should be stored in a place protected from high humidity and moisture to prevent rust. It is best to use the blade protector or to wrap the blades before placing the clipper inside a drawer with other implements. Instructions: Always apply one to two drops of the provided blade lubricant or other Oster approved lubricant to the blades before use. cleaned after each use. Cutting efficiency may drop and theblades and motor may be damaged if hair is dirty or hair styling agents have been applied. Always ensure that hair is clean before using the clipper. Blades should be properly A brush was included with your clipper. If you no longer have the brush, a toothbrush can be used to brush the hair out from between the teeth of the blade. Oster Kool Lube or Oster Blade Wash may also be used. Please note that even though these do contain oil, they are not sufficient for keeping your blade oiled. Blades should be oiled often during use.