Includes (1) stainless steel wine tumbler.
Insulation structure: extra thermal copper lining conducts even temperature retention that keeps hot beverages for over 3 hours and cold drinks for 5 hours.
Vacuum insulation technology: prevents heat from spreading and keeps the outside of the cup at a stable temperature to avoid discomfort caused by the drink's over-cooling or overheating.
Durable & lifelong use: made of unbreakable 18/8 stainless steel instead of damaging natural plastics and brittle glass. The walls are brightly colored and specially treated to minimize discoloration and fragmentation to give a smooth handle.
