3 16 medical grade stainless steel liner, medical grade standard, more heat preservation, more corrosion resistance and higher safety performance; Seamless frosted liner splicing, 360-degree seamless, integrated liner, not easy to shelter evil people from evil, safer, more heat preservation, longer service life; High-performance heat preservation and cold preservation, multi-layer heat preservation design, good heat preservation performance, long-term heat preservation regardless of hot water or cold water, delaying the temperature drop or rise, and achieving the effect of heat preservation; Straw-type bouncing cup cover, splash-proof exhaust design, food-grade liquid silicone straw; Transparent visible cup cover, cute customized cup cover, anti-fall cup body, built-in silicone sealing ring 360 leakproof, washable all over, customized non-slip silicone cup bottom.
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