2014 New Ceramic Knife Set,fruit Knife ,Chef Knives for Kitchen,3" ,4",6"inch, Hight Quality Ceramic Knife 3 Peices Set. Knives have a unique blade made of zirconium oxide, an advanced material that its hardness just less than the diamond. Includes 6" Chef's, 4" Santoku,3" Paring,and 1 gift box Ceramic knife will not cause any chemical reaction with any food.Keep the nutrition of food The best tool for guaranteeing the babys health The best Sharpness as never need to be sharpened