... :ABS + TPRAdvantages:*Blade made from advanced nano-grade zirconia ( ZrO2),high-tech product*Hardness is HRC90, only secondly to the diamond ... smell.*Anti-corresion,never rust ,keep food orginal color and flavour,enviroment-friendly.*Soft touch ,easy hold handle in accordance with ... products,pls feel free to contact us for more information. High quality Ceramic knives