Specification: Item Type: Diamond Sharpening Stone Material: Diamond Double Sided Grinding: 360 Grit, 1000 Grit Gross Weight: 479g/16.9oz Size: Approx. 296x70mm / 11.7x2.8in Package List: 1 x Diamond Sharpening Stone Note: Please allow some error due to manual measurement. Features DIAMOND MATERIAL: Diamond sharpening stone is made of diamond and is designed to sharpen knives on both sides for a more comfortable use. SCOPE OF APPLICATION: Double sided diamond sharpener can be used for sharpening knives and paring knives and other straight edge tools, ice knives, and home knives. EASY TO MAINTAIN: Diamond sharpening plates are more durable and easier to maintain than sharpening stones because they do not tangle and do not need to be flattened. ABRASION RESISTANT: Diamond whetstone sharpening stone does not break or discolor easily and has good wear and corrosion resistance for long term use. SAFE AND RELIABLE: Double sided diamond sharpening stone is easy to operate, safe and reliable, a kitchen essential and very convenient to use.