Double-wall Vacuum Design: The double-wall vacuum design helps the cup to keep warm for a longer time, keeping your food or drink cold or hot for a long time. Suitable Capacity: Our straw vacuum flask has a capacity of 350ml, which is just suitable for drinking. The heat-resistant temperature is -20-120℃, which can keep heat or cold. Rotating Lid: cup adopts a rotatable spout lid, which is suitable for use at different angles, which is very convenient for people with limited mobility. Application Crowd: Our thermal insulation straw cup is very suitable for the elderly and people with urinary incontinence to drink water and porridge, so that they can easily drink water. Safe Material: Our insulation straw cup is made of 304 stainless steel + food grade PP and silicone, which is very safe and durable. You can use it with confidence.