【Healthy& Eco-Frriendly Drinking Cups】Stainless steel cups made of 304 premium 18/8 food-grade stainless steel,100% free from toxin,lead and BPA,no taste.The material of stainless steel cups is strong and durable for reuse better than a plastic cup. 【Double Wall Vacuum Cups】The stainless steel cups are double walled design for keeping your drinks insulated.You can ensure your hot drinks will be kept hot and your cold drinks kept cold longer than standard cups. 【Ideal Cups For Kids】10.2oz/300ml sets of 4 stainless steal cups are perfect for children.The ergonomic design of stainless steel tumbler is very fits comfortably for small children’s hands.You can use these metal cups for your children’s party without having the worry of cups slipping out of their hands and breaking. Cups Easily Stackable】The Stainless steel cup can easily be stackable,allowing you to store them in any cup holder,drawer,or cabinet in your home.You can easily put them in an outdoor backpack without taking up too much space,making your travel lightly packed. 【Widely Use Tumblers Bulk】Large capacity of 300 ml for each stainless steel mug,suit filling with juice,milk,coffee,beer,smoothies.Suitable for both cold and hot drinks.Meet your different needs and reusable.Wonderful for home and outdoor events,such as workplace,picnics,traveling,schools,camping and hiking.