This product is made of AS raw material, the product exudes crystal luster, crystal bright, highly transparent, durable. In the range of minus 20 ℃ to 120 ℃, earthquake resistance, high temperature resistance, high pressure resistance, wear resistance increased by more than 10 times, long-term use, bright still. The design is more reasonable, no air leakage, no water leakage, even if it is inverted for a long time, it is not leaking at all, so it is more suitable for travel and carrying in the bag.
Instructions for use:
1. Clean the bottle before using it and check whether the sealing ring is installed properly.
2. Preheat (or precool) with a small amount of boiling water (or ice water) before use.
3. After each use, rinse it with hot water or cleaning liquid and dry it upside down.