***30oz. Double Wall Stainless Steel Vacuum Tumbler Water Bottle Travel Mug Durable Insulated Coffee Cup for Home, Office, Outdoor, Ice Drink.*** PREMIUM STAINLESS STEEL MATERIAL - The 30 oz. tumbler is Made from double wall high quality 304 18/8 grade stainless steel which won’t alter flavors or leach chemicals. This durable tumbler can effectively prevent rust though electro-polishing. Lead free and durable. EXCELLENT TEMPERATURE PRETECTION - With double-wall vacuum insulation technology, which can retain the temperature of your chosen beverage for a prolonged period of time. Enjoy Beverage Cold or Hot. Under normal temperature, Any hot drinks can keep hot for up to 6 hours and cold drinks can keep cold for up to 24 hours. ECO-FRIENDLY AND SPLASH PROOF - Our each tumbler with a dust-proof & BPA-Free lid, Easy slide lock to access your beverage and provide maximum splash-proof capability. The Wide-mouth drinking hole on the top, straw friendly. • Holds 30 oz. • BPA-free, vacuum-insulated • dual-wall 18-8 stainless steel with copper lining. • See-through, Easy to clean lid • FDA compliant • Hand wash only • Do not microwave • Keep cold up to 16 hours and keep hot up to 8 hours. • Gift box packing Available Colors: Blue, Black, White, Red, Silver