Come and Check Our Promo Solutions.Made of high borosilicate glass material. Light and robust at the same time. 300 ml capacity, can be used in breakfast milk cup, coffee cup and other scenarios. Double hollow structure, heat insulation and hot. High temperature resistance. Health, Environmental Protection. The small concave point at the bottom of the double-layer cup is an "explosion-proof hole", which is technically safe and designed. Welcome to print your logo on it. Pay attention not to rub it with hard objects and place it out of the reach of children Pls check inventory and detailed info with us before placing your orders.