[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 -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 old blades . Effectively your productivity. [Faster Sharpening With Less Effort]: High-quality 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 , 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.