Features:1. Material: made of high quality alumina, strong and durable, can use for a long time.2. Measurement: 4.9*5.7 cm, fit for most of power drills, practical and convenient.3. Easy to use: the sharpening part is quite rough, makes it easy to sharpen the blade quickly, less time and less wait.4. Efficient tools: for sharpening lawn blade, drill blade, mower, rote tillers, hoe and so on.5. Portable: The lawn mower sharpener is small in size, does not take up space, and is easy to carry. Notice:1.Actual color may be slightly different from the image due to different monitor and light effect2.Please allow 1-3cm deviation due to manual measurement Description:Material: AluminaSize: 49*57*6mm Package List:1 x Lawn Mower Sharpening Stone