Features: - Light, fashion, health - High quality paint, safe and healthy, comfortable feeling - Food grade ironing ring in the cup to prevent burns - The cover adopts the food grade rubber leak proof ring, safe and healthy, high temperature resistant and anti aging - The inner liner is made of stainless steel - Vacuum technology, permanent insulation, to reduce the growth of bacteria - Eliminate suction water, 3 millimeter size design to ensure any angle of water out - The flow of the drink is two times that of the past, and the flow is steady