1. Excellent material for sublimation process: Made of high-quality diving material with a heat transfer layer, it is soft, wear-resistant, elastic, and not easily deformed. The pressing temperature is 180 - 190℃ (356 - 374℉), and the pressing time is 60 - 80 seconds. 2. Anti-slip and heat-resistant: The blank coasters have an anti-slip function, which can prevent cups from sliding off the table and also prevent liquid from splashing, reducing accidental losses and keeping your home clean and tidy. In addition, the coasters have heat insulation properties and will not leave burn marks on the table. 3. Wide range of uses: These heat transfer coasters can be widely used to place glass cups, teacups, bottles, beverages, teapots, etc., and are suitable for various occasions such as homes, schools, dormitories, living rooms, hotels, cafes, and restaurants. 4. Suitable for DIY gift making: The blank coasters are very suitable for DIY creation. You can print family photos, personal photos, beautiful natural scenery, favorite pictures, inspiring words, etc. It is easy to operate, can stimulate your creativity, show your personal taste, and bring a brand - new visual experience. 5. Color: White 6. Material: Diving material 7. Size: 9 cm × 3 mm 8. Packaging contents: 50 sublimation process coasters 9. Only the above - mentioned packaging contents are included, and other items are not included. 10. Precautions: Light and different displays may cause slight differences between the color of the item in the picture and the actual product. A measurement error of ±1 - 3 cm is allowed.