- Body: Double-walled 304 & 201 stainless steel for heat preservation, coated with a layer of silicone rubber for a more secure grip and resistance to wear (optional), customized patterns and colors
- Outer lid: 304 stainless steel material, just twist to open, can be used as a cup
- Inner lid: Polypropylene material, just press the button to open and get water, then twist to fully open
- Gasket: Silicone material, resist leakage
- Keep hot after 12 hours - keep cold in 24 hours
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