Tears Of My Chess Opponents Vacuum Insulated Tumbler

This travel tumbler uses double-wall insulation to maintain the temperature of hot or cold beverages. The vacuum-insulated design provides twice the cold and heat retention compared to glass or plastic. The food-grade stainless steel is safe to use, and the removable clear lid helps retain temperature for extended periods.

• The description claims that the tumbler provides twice the cold and heat retention compared to glass or plastic.
• The description claims that the tumbler is made of food-grade stainless steel.
• The description claims that the tumbler can maintain temperature for extended hours.