Product Features: Food grade material. Safe and hygienic. Portable and Fashionable. Material: Spoon and Fork: 430 stainless steel, Chopsticks: 304 stainless Steel, Box: Tinplate. How to use: Do not use in microwave oven. Diswasher safe. Caution: 1. Before using for the first time, please clean the tableware in boiling water. 2. Clean with cotton cloth after each use. Do not clean with metal scouring pads to prevent scratches. Air dry in a ventilated area. 3. Do not place in high temperature areas or near fire sources to avoid deforming or damaging the product.