A. Suitable material for sublimation process: Made of diving material with a heat transfer layer, it is soft, wear-resistant, elastic, and not easily deformed. The pressing temperature is around 180 - 190℃ (356 - 374℉), and the pressing time is about 60 - 80 seconds. B. Anti-slip and heat-resistant: The blank coasters have an anti-slip function, which can help prevent cups from sliding off the table and also reduce liquid splashing, minimizing accidental losses and helping keep your home clean. In addition, the coasters have heat insulation properties and are less likely to leave burn marks on the table. C. Wide range of uses: These heat transfer coasters can be used to place glass cups, teacups, bottles, beverages, teapots, etc., and are suitable for various occasions like homes, schools, dormitories, living rooms, hotels, cafes, and restaurants. D. Suitable for DIY gift making: The blank coasters are suitable for DIY creation. You can print family photos, personal photos, natural scenery, favorite pictures, inspiring words, etc. It is relatively easy to operate, can stimulate your creativity, show your personal taste, and bring a different visual experience. E. Color: White F. Material: Diving material G. Size: 9 cm × 3 mm H. Packaging contents: 50 sublimation process coasters I. Only the above-mentioned packaging contents are included, and other items are not included. J. Precautions: Light and different displays may cause some slight differences between the color of the item in the picture and the actual product. A measurement error of ±1 - 3 cm is acceptable.