【Wheat Straw Material】Each 12oz dinner cup is constructed with organic wheat straw fiber, 100% BPA free, non-toxic, odorless. No BPA and harmful chemical materials. It’s a good alternative to plastic drinking cups. Very healthy, strong, and beautiful tableware for your family. | 【Premium & Unbreakable】 The premium materials ensure safe use while maintaining the highest quality for long-lasting value.Because of its sturdiness, you don't have to worry about it possibly breaking if dropped, making it a good replacement for glass, ceramic cups. | 【Dishwasher, Freezer and Microwave safe】 It's not same as plastic cups,these microwave safe cups are very easy to clean, you can wash them into your dishwasher. And they work great in microwaves without getting too hot.[ Note: The temperature resistance reaches up to 248 degrees Fahrenheit (120℃).] | 【Multipurpose Wheat Straw Cups】Cups for water, milk, Juice, soda and more. It also can be a gargle cup or toothbrush holder, great for all age of kids, adult and the eldly. They can be stacked and stored, just take up a small storage space, make your space more tidy. | 【Lifetime Warranty】Your is 100% guaranteed: all WROVA products come with a Lifetime Warranty. Welcome contact us if you any suggestion on our products. We will reply your message immediately.