DOUBLE-WALL INSULATED GLASSES - Double-layer insulation glass can effectively prevent hot drinks scalding your hands. The shape of the inner glass is a bear or a duck, which is a very cute cups design.High Quality Borosilicate-Glass - kawaii cup set made of lead-free high quality borosilicate-glass. The high quality borosilicate-glass eliminates organic chemicals during the firing process. When drinking water or other beverages with it, no harmful chemicals will dissolve in the drink in the glass. The glass surface is smooth and easy to clean. high quality borosilicate-glass material is very safe and healthy.Two Glass Mugs in a Set- The set contains two cute glass coffee mugs (Bear and Kitten). Approximate capacity 6.8oz. (200ml).MULTIFUNCTIONAL CLEAR MUGS - Coffee, milk, tea, juice, and more. Both hot and cold drinks are available.Excellent Gift - Glass coffee mugs are very good gifts for family, lovers, and friends. Suitable for Valentine's Day, Christmas Day, Thanksgiving Day, Teacher's Day, Children's Day and so on. Of course, this is also a very good gift for yourself.