Excellent product. Hot water retention is more than 12 hours. Bought for a friend. Only one other comment. Due to its shape, the elderly or those who cannot grip find it difficult to hold it and pour the contents safely with one hand. Maybe, incorporate a hand grip? Like a mug's?

Quality:the material is strong and nice design
Functionality:so far I used it for hot. The water is hot up to 7 hours in the air conditioning room

Fast delivery

Great experience with the seller. Buying for my father's birthday. He like it. Thank you 🎉

Best seller
Highly recommended