1.Double glasses insulated: Equied with double walled glass and silicone cover, it keep the internal temperature of your coffee hot longer for up to two hours during the colder months, as well as keep your hands from being burned.2.More durable: These glass cups are made of high borosilicate glass, which has a very low coefficient of thermal expansion, only about 1/3 of that of ordinary glass. Which ensure the glass can withstand an instantaneous temperature difference of 392 ℉.3.Fashion Drinking cups: The travel mugs with beautiful shape,compact and lightweight, fits most cup holders. You can enjoy your coffee, tea, wine, juice, oatmeal quite well. Suitable for indoor and outdoor use such as the car, home, parties, travel and office hours, and on the way to commuting.4.Easy to use: The tea cups have a black silicone lid with opening that makes drinking one-handed a breeze and transparent and glass container that provides a good grip. And they are dishwasher and mircrove safe.5.Home essentials for new home: The reusable to go coffee cup is a better choice can be given to lover, friends and family as a variety of holiday gifts like house warming gifts, birthdays, Christmas, weddings, anniversaries, mother day and more.