Ceramic knife set,high-tech products Never rust,anti-corression,eco-friendly Fashion and easy clean Ceramic knife set:*Blade made from advanced nano-grade zirconia,high-tech product*Hardness is HRC90, only secondly to the diamond ,super sharp and last longer*Wearability is 60 times as much as metal knife ,wear-resistance.*No chemical reaction with food ,no metalic taste and smell.*Anti-corresion, ...