The Good Tumbler is made from premium 304 stainless steel with double-wall vacuum insulation, keeping drinks hot for up to 6 hours or cold for up to 8, with a leak-proof lid built for life on the go. Specifications Material: Premium 304 stainless steel, double-wall vacuum insulated Capacity: 400 ml Bottom diameter: 7.5 cm Height: 17 cm Colors: Pink, Green Performance: Hot up to 6 hours / cold up to 8 hours, leak-proof lid How to Use Rinse before first use Fill with your hot or cold beverage of choice Close the lid securely Enjoy on the go Clean after each use Care Guide Hand wash with warm water and mild soap after each use Avoid bleach, abrasive cleaners, microwaves, and freezers, as these can damage the tumbler or its insulation Dry all parts thoroughly before storing Clean the lid and seal regularly to maintain performance Storage Tips Store clean and completely dry, with the lid off Keep in a cool, dry place away from prolonged direct sunlight Impact Food-grade stainless steel, built to be refilled for years. Every fill is one less disposable cup, reducing daily waste while keeping your drink exactly the temperature you want it.