... dioxide, white color, looks perfect, sharpe and no rust Ceramic Kitchen Knife3", 4" ,5", 6' ,7", Ceramic material, also ... blade width:20mm , blade thickness:1.5-1.65mm ,blade +handle:170mmABS yellow handle4"--Blade length:103mm , blade width:25mm , ... handle:270mmABS green handle7"--Blade length:176mm , blade width:37mm , blade thickness:1.9-2.0mm ,blade +handle:290mmABS green handle Ceramic Kitchen ...