Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si [Heavy-Duty Thicker Sharpening Stone]: Each drill attachment has a long-lasting and durable corundum stone with metal deflector 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 it. And it can quickly make blunt old blades sharper. 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 tractors, mower, rototillers, drill blade, sickle bar cutter, etc. Fit for the 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 the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.