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. Polycarbonate also has very good heat resistance and can be combined with flame retardant materials without significant material degradation. Polycarbonate plastics have really a high value for anyone to use, and polycarbonate plastic is moldable, durable, lightweight, and flame resistant. Two Tone Kara Cutlery matches everywhere. They have various colors (Hand Wash Recommended). Component : 1pc of Korean Spoon, 1set of Chopsticks, 1pc of Fork and 1pc of Knife Korean Spoon : 21.2cm Chopsticks : 23cm Fork : 21.5cm Knife : 24cm Available handle Colors : White / Navy / Olive / Pink Bottom of handle color: Platinum and charcoal thick stripe 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. 4. Prolonged exposure to salt-containing water can lead to discoloration.