Long-term Heat Preservation: Double-walled vacuum insulation easily locks the temperature and better holding Coffee, tea, milk, latte, hot cocoa for a long time, enjoying the original taste of the drink in fitness, travel, picnic and other occasions. 
 
Durable and Safety: Made of food-grade 304 stainless steel, corrosion resistant, all have splash-proof lids, silicone base to avoid sliding. And silicone nozzles for each stainless steel straws. 
 
30Special Gifts: Each tumbler comes in its own gift box, making it a special surprise and practical gift for your friends and family, even a small business for customer gifts. Perfect for Christmas, Thanksgiving, Birthdays, Mother's Day and anniversaries.