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.