[Strengthen The Upgrade] Upgraded lawn mower sharpener, different from the old version. Made of corundum, With metal baffle. Better quality and longer service life. The grinding wheel will not melt due to high temperature during the grinding process. [Material upgrade] Upgraded version Lawn Mower Blade Sharpener improves grindstone, which makes Lawn Mower Blade Sharpener more Stronger. We have redesigned the shape of the grindstone so that the Lawn Mower Blade Sharpener will not collapse or crack during use. [Wide Application] Lawn mower 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 of power drills (Do not need to buy expensive blades) [Easy To Use] only takes 10 seconds to install. You only need to install it on the electric drill and use it. And it can quickly make old blunt blades , effectively improving productivity. Fast, automatic, simple, safe, save time and effort. Note: The maximum speed when using this product is 500 Please keep using within this range. Our products will not have any problems. Colour:As Shown Material:Plastic+stainless steel+stone Package Contents: 6 * Sharpener 2 * 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.