Features: Knife Sharpening Stone KitIncluding one 4001000 sharpening stone, one 30008000 sharpening stone, 1 large nonslip base, 2 rubber bases, 1 angle guide and 1 flattening stone, the wet stones set for sharpening knives is a good helper in home kitchen. Premium Quality WhetstoneThe wetstones for sharpening knives are made from highquality white corundum material, which not only have a much more precise grit side, but also are durable to use for long time. Dual Sided GritEach sharpening wet stone has dual sided grit. 4001000 grit side is suitable for repairing large gaps; 3000 grit side is for consolidating the blade, fixing the small gaps and smoothing the edges; 8000 grit side is for polishing. Easy to UseExpensive oil is not required. Just put the wet stones into water for 1015 minutes before using. You can add some water on it every now and then while sharpening knives, which can make the grinding effect better and help you save strength. Suitable for All KnivesThe whetstones kit for sharpening knife can sharp all kinds of knives, including kitchen knives, chef knives, pocket knife, butcher knife, paring knife, BBQ knife, scissors, chisel, razors, clippers, blade, etc. Specifications: Material: White Corundum Size: 18*6*3cm/ 7.1 * 2.4 * 1.2in Stone Weight: 690g 1.5lb (one sharpening stone) Packing List: 1 * 4001000 Sharpening Stone 1 * 30008000 Sharpening Stone 2 * Rubber Base 1 * Wooden Base 1 * Angle Guide 1 * Flattening Stone