Multi-functional sharpener: Ideal for sharpening scissors, knives, and gardening tools, making it an essential tool for any household or gardener. Double-sided design: The two-sided file features flat and curved surfaces, allowing you to easily sharpen various tools. Easy to use: Simply hold the tool at the desired angle and run it along the file to sharpen the blade. No complicated instructions or special skills required. Maintain a 15-30 degree angle and gently sharpen from the heel to the tip 3-4 times; no oil or water, just a little water if needed. Keep away from young people.