Features 1、Can be used as replace stone for fix-angle knife sharpening system 2、The whetstones are light, portable, and anti-friction 3、Stone grits are comparable to how sandpaper is graded the lower the number, the rougher the cut 4、Suitable for sharpening kitchen knives, carbon steel knives, chisels, chisels, utility knives, fillet knives, swords 5、Easy replace for the whetstone of the sharpener system (in our shop) Specification Features: Can be used as replace stone for fix‑angle knife sharpening Sys All the stones with base,if you don't wanna a base,plz contact us first. Sharpening Systems The whetstones are Light, portable, and Anti‑friction Easy replace for the whetstone of the sharpener system (in our shop). Or work alone for an easy Sharpening task on all kinds of knives, gouges, chisels, tool bits Work with either oil or water Specifications: Stone size: 150mm*20mm*5mm Granularity: 3000# Package including: 1 x Sharpening Stone Package List