1,smell—the product is new, a little smell is normal. Half an hour with boiling water can be a good solution to the problem of smell.

2,material safe— Food-grade material silicone. FDA approved and BPA free .

3,water temperature — suitable for -50 degrees Celsius to 150 degrees Celsius.

4,Size — Folding : 3.4 x 1.8 inches ; Open size: 4.85 x 3.4 inches.

5,Portable — Take only a little space ,easy to put in your purse,pocket,backpack,suitcase.A great idea for camping,travel,hiking and picnic

6,Convenient — Easy to clean & dishwasher safe.Commodious for coffee,milk,tea,hot water,cold drinks and beverages.