DOUBLE WALL VACUUM INSULATION: The mr and mrs gifts travel tumbler can keep drinks at an ideal temperature for a long time. According to tests, it can keep hot for 5 hours and keep cold for 9 hours. Due to the double wall insulation design, even if the insulated tumbler is filled with iced or boiled drinks, the tumbler surface will never get cold or hot to touch.
COMPLETE ACCESSORIES: This couple gifts travel tumbler set comes with 4 BPA Free Lids(2 sliding lids & 2 lifting lids) and 4 stainless steel straws with silicone straw tip. 2 straw brushes and 1 cup brush are also included to make you easier to clean the couple tumbler after using.
