With these thermal milk bottles, mothers no longer need to worry about milk turning cold. Heat of the milk stored in the bottles can be preserved for 3 to 4 hours. The bottles also feature silicon gel rings that prevent milk from overflowing.

• Compact dust covers.
• Feature separated layers for good heat insulation.
• External layers made of PP.
• The tank bottles adopt the heat preservation principles of Thermos products.
• Adjusting screw threads at the bottoms keep the internal parts firm.
• Prevent bottles from bursting through shaking.