Come and Check Our Promo Solutions.Hand blown borosilicateglass is lighter than the normal glass,but durable and stable.100% lead-free,PBA-free.Double wall design can prevent from burning hand,keep your beverage hot while keeping your hands cool.The double layer glass mugs wrapped in an elegant and stylish gift box is the ideal gift for your family or friends especially on special occasions.Perfect for any cafe, restaurant, and office,it's also a great Ideal for promotion or gift. Pls check inventory and detailed info with us before placing your orders.