PRODUCT MATERIAL:Chopsticks: 304 Stainless steel; Spoon: 430 Stainless steel; Box: tinplatePACKAGING MATERIAL:paper boardHOW TO USE:Can be used in a microwave oven and dishwasher.FEATURES: Portable and eco-friendly.PRECAUTIONS:1. Before using for the first time, please clean the spoon and chopsticks 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.STORAGE METHOD:Please keep in ventilated and dry place.