•2 GRIT SIDES ENSURE BEST SHARPENING: The BLUESUN Sharpening Stone Device has excellent features of self-sharpening, particle distribution is consistent and precise hardness. The 3000 grit side is for re-profile cutting edge of knife, refine the dull edge of blade and damaged gap of blade quickly, the 8000 grit side is for fine grinding, remove the burr and straighten the cutting edge of knives quickly, enhance the edge to be sharp and polished. makes your knives edge shiny like a mirror.

•HIGH QUALITY MATERIAL CAREFULLY SELECTED: The BLUESUN Sharpening Stone is made of natural corundum being fired with special formula by temperature of 1000+ Celsius inside industrial oven, and then cooled down by air dry. Every Sharpening Stone Device is produced with 17 processes, which is grinded precisely and has three inspection procedures to guarantee the quality.

•MUST HAVE ONE FOR KNIFE FANS: Reduce metal from your knives blade the least amount possible due to the white corundum material, enables your knives to be in good condition and protects your knives from any damage

•SUITABLE FOR MOST GRINDING: Suitable for kitchen knives, kitchen scissors, sushi knives, pocket knives, bread knives, straight razor cutting class knives grinding, hunting knives, precision tool, planer tool and chisels.