Watch list during application： 1. Beware：Do not clean with iron brush or cleaning utensils made of hard and solid materials to protect the surface of porcelain being scratched. 2. Beware：It can be washed in microwave oven, dish washing machine or boiling hot water. 3. This merchandise is handicraft product with the mug not 100% round in shape, but for those with capacity and size within ±3% are rated as good quality. 4. If ever there is any damage or blemish spot or pinholes, etc, please contact this company’s customer service for exchange of merchandise. 5. For accurate coloring, please refer to the actual products of merchandise.