Eazzzy Non-Stick Ceramic Knife Set of 6(Multi-Color Set) Hardness can reach above HRC85, 100% don't rust Cut vegetables or fruit, won't produce peculiar smell The proportion of ceramic materials is about two-thirds of metal materials Nanoscale materials, compact structure, no pores, no contamination, easy to clean Hardness is extremely strong. Processed food is not easy to adhesion, can cut out the meat as thin as paper, very light energy, and not the edge