1. Material: The cup body is made of high-quality high-quality borosilicate crystal glass tube, which is extremely transparent, resistant to abrasion, smooth surface, easy to clean, healthy, and hygienic;
2. Structure: The double-layer heat insulation design of the cup body not only maintains the temperature of the candle but also does not burn your hands;
3. Process: It is fired at a high temperature of 640 degrees, and has strong adaptability to temperature changes. The instantaneous temperature difference is -20-150, which is not easy to burst;
4. Observability: The glass material has strong observability and good aesthetics.