Anself 3000/10000 Grit Double Side Combination Whetstone Sharpener Knife Sharpening Stone Grindstone for Knives 1002510mm High-grade whetstone ensures good sharpening results. The knife sharpener is lightweight, small in size, portable and anti-friction. Easy and convenient to sharpen knives, more effective for you. For sharpening kitchen knives, scissors, chopper, hand hay cutter, shave knife, etc. Double-sided sharpening design(3000 grit and 10000 grit are for fine grinding). 10000# agate sharpening stone + 3000# ruby grindstone.