4" + 6" Inch Sakucera Green Ceramic Knife Chef's Cutlery Set Blade Refreshing Series 4" + 6" Utra-sharp Ceramic knife with White blade/Green handle, designed for chopping, mincing, and dicing Ceramic blade ground to microscopic precision by diamond wheels for rock-like edge with excellent sharpness retention Totally impervious to acids, juices, oils, salts or other elements; will never rust Lightweight, extremely balanced in the hand; ergonomic handle reduces fatigue during repetitive cutting Hand wash only