change color mugs

DO NOT clean with iron brush or cleaning utensils made of hard and solid materials to protect the surface porceline from being scratched. DO NOT place this cup inside microwave oven,nor dishwacher to wash clean to protect the surface of pattern from being peeled off . DO NOT place into water(or any other liquid) to soak or boil or in the refrigerator to be frozen to protect the surface of pattern from being peeled off . This merchandise is handicraft product with the mug not 100% round in shape, but for those with volume and size within ±3% are rated as good quality. If ever there is any damage or blemish spot or pinholes, etc, please contact this company’s customer service for exchange of merchandise. For accurate coloring, please refer to the actual products of merchandise.