BOGEN persists in using high quality stainless and PVD Coating procedure. 18-10 Stainless contains 18% of chromium and 10% Nickel. These to numbers, 18 and 10, refer to the chromium and nickel content, which gives flatware its rust-resistance and silver-like shine properties. 18-10 stainless steel provides the highest amount of nickel producing the greatest resistance to rust and longest held polish. 18-10 stainless steel is harmless to human, easy to clean, and strong to heat. Korean spoon (2pcs) and Chopsticks (2sets) Material: Stainless, Hard maple wood Made in Korea Special Instruction: 1. Please do not use detergent which contains hydrogen peroxide. Use of the typical detergent may peel off the surface of titanium-clad or cause discoloration. 2. Please use soft material to wash products. 3. Please do not use dishwasher.