1.Package Include: You will receive 2 pieces knife sharpener stones in different grits, including 400 grit and 1000 grit. These whetstones are small in size and light in weight, so they are easy to carry and store without taking up too much space. 2.Unique Design: The unique honeycomb design ensures that the dust generated during the grinding process will not affect the sharpening. The diamond sharpening stone has a non-slip base to ensure that it will not slip during use. 3.Reliable Material: These sharpening stones have high convenience and durability because they are made of diamond material. Due to the high hardness of the material and the low loss during use, our sharpening stones can be used for a long time. 4.Convenient to Use: You just need to place the knife on the sharpener stone and move it back and forth several times while maintaining an angle of about 30°. You can always adding water on it while sharpening, which make the lubricating effect of grinding will be great.