Naniwa P-308 Professional Stone (Chosera) 800 Grit Japanese Whetstone Knife Sharpener As shown here

As shown here

FINGER GUARD: POLISHED CNC A-304 STAINLESS STEEL

which enables it to ‘season’ the metal by absorption deep into the pores

Blade Style: Fixed

his smallest pocket knife ever nevertheless features sophisticated ergonomics and high utility

Naniwa P-308 Professional Stone (Chosera) 800 Grit Japanese Whetstone Knife Sharpener As shown hereNaniwa's Professional Stone is their highest grade stone and the overseas model of their "Chosera" stone. 800 Grit 210 x 70 x 20 mm Instructions: Splash stone with water before sharpening and continue to do so when sharpening. Naniwa Professional Stones do not need soaking as they have tightly resin bonded particles, making them more durable and effective than other makes. Made in Japan