12oz Double-Layer Stainless Steel U-Shaped Egg Tumbler Vacuum Insulated Wine Cup

12oz Double-Layer Stainless Steel U-Shaped Egg Tumbler Vacuum Insulated Wine Cup. Vacuum Insulation Performance: Keeps drinks cold for 24 hours and hot for 12 hours. Premium Material Quality: Made of double wall food grade 304 stainless steel, BPA-Free and Phthalate-Free. Customization Options: Customizable colors, logos (silkscreen, laser, etc.), and packaging available. Lifetime Warranty: Comprehensive lifetime warranty covering the product's durability. Experienced Manufacturer: Over 20 years of experience in stainless steel drinkware manufacturing. Certified Safety: Products pass CE and LFGB safety tests for global market compliance. Durable Finish: Sweat-free powder coat finish with various lid choices using 100% Virgin PP. Versatile Usage Scenarios: Suitable for home, school, office, travel, mountaineering, and car use.