Come and see our amazing products. The multifunctional wine tumbler bulk is made of 304 food grade stainless steel with non-slip frosted coating,no metallic taste. It has an eye-catching and fashionable appearance and is more durable and safer than other ordinary glasses. It is equipped with a BPA-free lid .this multi-functional stainless steel tumblers is used in fashionable restaurants, music bars, coffee shops and other gathering places to bring everybody more convenient and fashionable experience, and make life more colorful.Customized is available. Pls confirm further with us if any query about packing info, inventory status and time schedule.