[Heavy-Duty Thicker Sharpening Stone]: Each drill attachment has a long-lasting and durable corundum stone with metal deflector that can sharpen blades of any size. [Free Blade Balancer]: The mower blade balancer assures even sharpening of the lawnmower blade to create razor-sharp cuts. [Install In 5 Seconds]: Install in seconds and you only need to install it on your electric drill to use it. And it can quickly make blunt old blades sharper. Effectively provide your productivity. [Faster Sharpening With Less Effort]: High-quality stones sharpen blades in under 10 minutes so you will never spend time and effort on sharpening again! [Multi-Scenario Application]: A lawnmower blade sharpener could be used for sharp mower blades to make the blade sharp again. Using in sharpening lawn blade, lawn tractors, mower, rototillers, drill blade, sickle bar cutter, etc. Fit for most the power drills. colour: as shown Material: Corundum+Stainless Steel+Plastic Size: about 5cm in diameter Package Contents: 3 x Blade Sharpeners 1 x Balancer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.