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Is there a third-party test report?: Yes Color: Quiet White Product Category: Thermos Cup Material of liner: 304 stainless steel Whether it is a gift: Yes, a personal gift. Insulation performance: 6-12 hours Material: Inner and outer 304 Applicable gift-giving relationship: friend Packaging Specifications: Neutral Color Boxed Applicable scenarios: home, car, general, office, outdoor, travel, gift giving Customized process selection: internal spray ceramic Applicable groups: women, men, couples, general purpose, students Inner liner process: seamless Shell material: 304 stainless steel Style: Large Capacity, Car Cup, with Lock Function: Portable, Vacuum, Insulation, Customizable Style: Modern minimalist Capacity: 510ml