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SPECIFICATIONS: • Brand: Tyeso • Colors: Black, Blue, Green, Pink, Purple, White • Capacity: 600 ML / 900ML • Material: 304 Food grade stainless steel • 100% Original • Sweat proof • BPA Free • Thermos Seal • Superior Powder Coated Finish • Straw friendly • Lightweight easy to cary PRODUCT FEATURES: • Made from premium food-grade stainless steel cup, BPA free, lead free and rustproof. • Double Wall Insulated to prevents heat transfer to the outer wall of the cup to burn your hand • It comes with a strong and durable sliding lid and gives you an option to put a straw • This thermos mug is very light and portable, making it a great choice for taking anywhere. • Fits in most vehicle cup holders, which is a good choice for leisure and use at home, office, road trips, camping, traveling, hiking, sporting activities and picnics. DESCRIPTION: TYESO Vacuum Insulated Tumblers is using a double-layer vacuum insulation technology, this insulated beverage cup can keep your beverages warm for 12 hours and cold for 9 hours. Making them the perfect choice for any season or environment. Stainless steel options also eliminate condensation and won't transfer heat or cold to your hands. HOW TO USE: Use only a soft-bristled brush to clean your tumbler to prevent it from scratches. Pour 1/2 cup of distilled vinegar inside the tumbler and carefully swirl it around. Let it sit for 5 to 10 minutes before pouring out the liquid and rinsing it with water. Then wipe it with a soft cloth.