Our CustomGiftsNow sublimation ceramic mugs are heated up to 500-degrees Fahrenheit. The image is then heated directly onto the ceramic coffee mug and then dipped into a water solution to ensure lasting image quality on the side shown. The image/design is applied to our ceramic mugs in our warehouse located in the United States (USA) to ensure higher quality assurance. Will make a great present as a reveal to your loved ones or friends. If you can't visit your loved ones these mugs can be a surprise arrival as a pregnancy announcements, father's day gift, mother's day gift, or just letting them know you love them and are thinking about them during these times. Our mugs have been given to familes across the world for years and make a memorable gift to your family. Our mugs are created with care and our mug designs create an unique and memorable moment for the recipment every morning they drink tea, coffee or any other favorite beverage. Can be used in the microwave to heat up tea or water and can be cleaned with ease by hand as well.