Excellent packaging: The package includes 4 lawn mower blade sharpeners and 1 pencil sharpener. Useful for mower and lawn tractor blades. Product Dimensions: Pencil sharpeners are 5 x 5.5cm, balance 6 x 5cm. Fits most electric drills. HIGH QUALITY: Made of premium corundum, strong and durable for long term use. The sharpening part is quite rough, which makes it easy to sharpen the blade quickly, save time and effortlessly. Easy to use: it only takes 10 seconds to install it. Just install the sharpener on an electric drill. Blade balancing: the tests of different diameters on the cutter holder can be selected according to the cutter of different apertures. Wide application: widely used for electric drill and manual drill. Ideal for sharpening lawn blade, drill blade, mower, sickle bar cutter, rotary tillers, etc. Features: Blade sharpener: Color: blue. Dimensions: 5 x 5.5 cm. Material: premium corundum. Fits most electric drills. Balancer: Color: black. Dimensions: 6 x 5 cm. Material: