Quality Speaks - Our glass coffee mugs are made of the high-borosilicated glass which is proved to be the purest and safest material in contact with water. The glass cups have a smooth rims to eliminate lip discomfort. No toxic substance is released when brewing because of its super chemistry stability. 100% lead-free Heat-Insulated Handle - The convenient handles always stay cool to the touch even when drinks are reheated in the mug.The handle is comfortable to hold and designed ergonomically, which will make it easier for you to grasp Multiple Use -The capacity of the tea mug set is 500ml/17 oz, which are perfect for coffee, latte, espresso, demitasse, tea, milk, smoothie and juice. It is a nice addition to home, office, restaurant, pub, and parties Sweet Gift - A set of 6 cups makes this glass coffee cup set very suitable for giving to family or friends as gift. The different colored handles make you no longer have to worry about mixing up the cups. Choose your color and enjoy your tea time Easy to Clean - The glass espresso mugs can be wiped down or hand washed easily. Smooth curve means that they can be cleaned quickly. Moreover, dishwasher will be more convenient for you.Satisfaction Support - Our is always trying to be a brand that provides high-quality tea & tea accessories to customers, offering 24/7 customer service. If you are not satisfied with your item, please contact us and we will provide a satisfying solution