Note: Please handle with care when pouring boiling water to avoid scalding injuries. CLEANING AND MAINTENANCE TIPS * Do not put in the dishwasher * Do not put in the oven * Do not put in the microwave * Use a neutral detergent for cleaning * Clean promptly after holding beverages (such as coffee, milk tea, milk, etc.) * It is recommended to clean daily * Keep away from open flames * Keep away from sharp objects * Be careful of drops from heights * Be mindful of small parts Cup Capacity: 650ml. Cup Size: * 650ml: Diameter 8.5cm / Height 20.5cm Material: * Lid Material: PP * Cup Shell: 304 Stainless Steel * Inner Cup: 316 Stainless Steel * Sealing Ring/Straw: Food-grade Silicone * Handle: Polyester Filled with Cotton * Rope Loop: TPE Vacuum Insulation Technology: Preserve flavor and freshness to keep beverages hot for 5 hours or cold for 8 hours. Insulation Efficiency: Preserve flavor and freshness to keep beverages hot for 5 hours or cold for 8 hours. (Due to the larger diameter of Milk Sippy Cup's cup mouth, the insulation efficiency is somewhat reduced. However, the insulation duration is sufficient to meet your enjoyment of a cup of delicious coffee.) * The first use may come with some odor, which is a normal phenomenon. Please rest assured. You can soak it in hot water with half a lemon for a few hours. * After use, please clean it promptly to avoid breeding bacteria for a long time.