Come and see our amazing products. Water tumbler is made of gauge 18/8 stainless steel with an extra spray painting, good rust resistance, durable and convenient to use, easy to clean. The classic cup is made of stainless steel with two layers. It can insulate hot and cold water. This cup is a great choice for winter or summer use. The classic and journey tumblers can be applied as wine cups, champagne cups, water cup or sports fan travel mugs, suitable for parties, picnics, self-driving travelling, boats, beach, pool, etc. Super capacity sippy cups are healthy and non-toxic. This is a great gift for parents, friends, and children to use all year round. Pls confirm further with us if any query about packing info, inventory status and time schedule.