... discoloration; 4,Health:Without heavy metal; 5,Abrasion resistance Ceramic Knife – High Density ZirconiaItem No.: JH3A1-P01,JH4A1-P01,JH5A1 ... white color like Jades.We could apply different knife handles to knife,such as plastic,ebony,ABS.We can also ... grind ceramic knife with ordinary knife sharpener,it should be used diamond abrasive disk to grill tip of knife. 6inch Zirconia Ceramic paring Knife