1. AIR lightweight insulation cup, winter heat preservation, summer cold preservation, retain the temperature of the four seasons 2. The inner wall of high-speed spinning thin technology, the cup wall is as thin as 0.12mm, the cup wall is thinner, the weight is lighter. 3. 316L stainless steel grinding liner, easy to clean, portable and durable, not easy to deform. 4. Rounded cup mouth, fine polishing, rounded mouth does not hurt the mouth 5. Sealed lid, thickened silicone ring protection, heat preservation effect closer to a layer
