[DETAIL] Multi functional knife sharpener: suitable for grinding scissors, knives, and gardening tools, it is an essential tool for any household or gardener. Double sided design: The two sides of the document have flat and curved surfaces, making it easy to grind various tools. Easy to use: Simply keep the tool at the desired angle and run along the file to grind the blade. No need for complex explanations or special skills. *Maintain at 15-30 degrees and grind the blade 3-4 times from heel to tip; No oil or water required, only a small amount of water is needed if necessary. *Stay away from children [ATTRIBUTES] - Hign-concerned Chemical: None - Material: Tungsten Carbide - Origin: Mainland China - Hign-concerned Chemical: None - Material: Tungsten Carbide - Origin: Mainland China - Type: Sharpeners