Coca-Cola Sub-Zero Tumbler - Not for Sale. This is a non-sale item, a prize from the 2023 Coca-Cola campaign. There are minor scratches, so I'm offering it at a reduced price! I think this is a great price for anyone who wants to try it once! It's a three-layer stainless steel tumbler with a cooling agent inside. When you put a drink in the tumbler after freezing it in the freezer, it quickly reaches sub-zero temperatures, allowing you to enjoy an ice-cold drink. It also has a vacuum-insulated structure, so it keeps your drink cold. I think it's perfect for the coming season. Thank you.