Product Description: High quality double layer stainless steel inner liner vacuum design insulation effect: Above 50 ℃ (6 hours), above 40 ℃ (12 hours) Inner liner surface adopts electrolytic grinding technology to prevent dirt from forming sealing rings, food grade PP grade material is used along the mouth, healthy and worry free cup cover, good sealing of cup plug, and no dripping. The dual cup combination with different capacities is suitable for different occasions, and the unique shell wrapping design has a better feel. The dual color combination shows a calm and atmospheric atmosphere