... ceramic knife set 2. 3",4",5",6" with cover 3. LFGB,SGS 4. factory price,fast delivery 5. ... sharp,rustproof,eco-friendly China with cover 4 pcs ceramic knife set Specification: 1.Modle:CKW3456P06 ... frozen or broned food.Please use with a plastic or wooden cutting board ,Avoid cutting on marble ,stone, glass ... try to sharpen it by yourself. China with cover 4 pcs ceramic knife set