12oz double insulated tumbler-rainbow

Made of high quality 304 grade 18/8 stainless steel. It is not easily broken, reusable, does not rust or leave a bad metallic taste in the mouth, and never sweats or touches hot hands. Modern curved design that is easy to hold. Double-layer vacuum insulation technology keeps the beverage warm or cold for a long time and is suitable for all seasons. BPA-free, the surface of the lid has a straw hole design, which can be used for sipping or using a straw to reduce splashing.