2-in-1 Tumbler & Chiller：
It's not only a 30oz insulated tumbler, but also a 20oz iced coffee maker with instant chiller.
The walls of the tumbler are made of stainless steel which won't crack after freeze and chill.
Convenient to carry：
The coffee tumbler is the perfect combination of a portable tumbler and an iced coffee chiller.
you can use and enjoy iced drinks indoors and outdoors as you want.
Instant Chill and Keep Cold:
1 Frozen chiller can cool down from 185°F to 77°F for 10oz drink in 2 minutes.
1 Frozen chiller can keep a tumbler of 20oz drink cold for 12 hours.
Capacity：20 oz when with chiller
30 oz when without chiller
8.6 in tall without lid
Weight：0.89 kilograms in total
0.42 kilograms without chiller
Freeze time：more than 6 hours in -20°C fridge
Chill time：Swirl to chill 60-120 seconds
Product Care Instructions：Machine Wash, Hand Wash Only
Delivery Time: 5- 7 days.