Specifications: Product Name: Spiral Glass Double Layer Mug Material: borosilicate Size: 9.5x7cm Capacity: 301-400ml Color: blue/clear/brown/green Packaging: OPP Features: Durable Mug --our borosilicate material is lead-free and BPA free. So the glass cup is suitable for ice or hot coffee,tea,juice beverage.It’s a perfect addition to your breakfast and afternoon teatime . Easy to clean--our insulated espresso coffee glass cup is easy to clean. Perfect gift---The unique shape of the glass cup will make your home more beautiful. Double Wall Design--The double-layer glass coffee mug can keep your beverage hotter and colder than single wall glass and ceramic cups. And You can touch the outside glass easily without burning fingers. Hole on the bottom- There is a small hole on the bottom of the glass coffee cup which can balance the pressure. It is sealed,the water would not go in. Gift For Coffee Lover-- the espresso mugs could be the ideal gift for your family or friends or on birthday,housewarming,wedding,parties,Mother's Day,etc. Package Included: 1 * Double Layer Glass Note: 1. Due to the light and screen difference,the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement. Durable Mug --our borosilicate material is lead-free and BPA free. So the glass cup is suitable for ice or hot coffee,tea,juice beverage.It’s a perfect addition to your breakfast and afternoon teatime . Easy to clean--our insulated espresso coffee glass cup is easy to clean. Perfect gift---The unique shape of the glass cup will make your home more beautiful. Double Wall Design--The double-layer glass coffee mug can keep your beverage hotter and colder than single wall glass and ceramic cups. And You can touch the outside glass easily without burning fingers. Hole on the bottom- There is a small hole on the bottom of the glass coffee cup which can balance the pressure. It is sealed,the water would not go in. Gift For Coffee Lover-- the espresso mugs could be the ideal gift for your family or friends or on birthday,housewarming,wedding,parties,Mother's Day,etc.