... Y2O3 2,Rigid:HRA 87min 3,Fashion:Never discoloration; 4,Health:Without heavy metal; 5,Abrasion resistance Ceramic ... Material: ABS+TPR handle(anti-slip)Size Available: 3”, 4”, 5”, 6”, 7” and 8"Ref. Specification: ... Ceramic knife has sharper than ordinary steel knife. 4,Abrasion resistance:owing to high rigidity,so ceramic knife ... is 7.85g/cm3,Ceramic Knife's is 6.0-6.1g/cm3. So, it benefits to ...