Sturdy Enough: These sharpening stones have high convenience and durability because they are made of 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. These whetstones are small in size and light in weight, so they are easy to carry and store without taking up too much space. Honeycomb Design: The honeycomb design ensures that the dust generated during the grinding process not affect the sharpening. The sharpening stone has a non-slip silicone base to that it not slip during use, and it is very to carry it. You can put it wherever you need to use easily and conveniently. Convenient to Use: You just need to place 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 be great., Weight: 1.11002748917 pounds, Manufacturer: Omvial