1. Product is printed with food color changing materials, and cannot be exposed to sunlight or strong light for a long time.
2. Do not use sharp tools or rough cloth to rub the printed pattern.
3. Not suitable for microwave and dishwasher cleaning. It is recommened to wash by hand only.
4. The temperature during use should not be higher than 120 degrees, and the constant temperature should not exceed 60 minutes.
5. The cold color change temperature is lower than 22 degrees or less, the thermal color change temperature is higher than 45 degrees.