... and design and R & D.About CHIKA Zirconium Ceramic Knife-Fruit KnifeCeramic Knife is made from the material which likes diamond's ... Size: 3", 4", 5", 6", 7", 1#cut knife, 2#cut knife, 3#cut knife, and other ceramic knives.Blade Colors: white or black ... the manufactured experience and due to the advantage of ceramic knife, our ceramic knife is very popular in America, Europe and Asia.--Best ...