product description Color: 3-pack Color: pink, blue Double layer size: 64x56mm Four-layer size: 81x56mm Package Included: 3 Pieces (2* Double Layer + 1* Four Layer) x Lawn Mower Blade Sharpener 1. Function - The lawn mower blade sharpener can be used for sharp lawn mower blades to make the blades sharp again. For sharpening lawn blades, lawn tractors, lawn mowers, rotary tillers, drill blades, sickle bar cutters, etc. 2. Advantages - fast, automatic, simple, safe, time-saving and labor-saving. The lawn mower blade sharpener simply attaches to the power drill to sharpen blades quickly and easily. Make the edge more efficient (save time and effort, and be safer) 3.Material - The thickness of the grinding wheel is 0.78 inches, which is thicker than ordinary grinding wheels. Made of corundum, high quality, durable and long service life, the blade sharpener is reusable. (High quality, can be used multiple times) 4. Multi-scene application - widely used for grinding lawn blades, drill blades, lawn mowers, sickle bar cutters, rotary tillers, etc. This sharpener can be used for power drills and hand drills to sharpen dull ones, effectively increasing your productivity. 5. Simple to use - The lawn mower blade sharpener can simply be attached to the electric drill to sharpen the blades easily and quickly. Making the edge more efficient (saving time, effort, and safety). It only takes 10 seconds to install, you just need to install it on the power drill and you are ready to go.