Features: 1. Made of stainless steel + food grade plastic, safe to use and durable. 2. The lid has a heat emission hole and a straw hole for easy drinking. 3. Food grade silicone ring, good sealing effect, heat resistant and wear resistant. 4. Double insulated design, heat insulation and good heat preservation performance. 5. Simply press the button on the handle to mix automatically, easy to use. Specification: Condition: 100% Brand New Capacity: 450ml Material: Stainless Steel + Food Grade Plastic Color: Yellow, Pink (optional) Power Support: 2pcs AAA Batteries (Not Included) Size: Approx. 11*13*14 cm / 4.3*5.1*5.5 inch Weight: Approx. 375g / 13.2 oz Package list: 1 * Coffee Stirring Mug (Battery Not Included) Note: 1. Do not soak the bottom of the cup. 2. Place it in a place where children under 3 cannot touch. 3. Not available for freezing, dishwasher washing or microwave heating. 4. Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. 5. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. Food grade silicone ring, good sealing effect, heat resistant and wear resistant The lid has a heat emission hole and a straw hole for easy drinking Made of stainless steel + food grade plastic, safe to use and durable Double insulated design, heat insulation and good heat preservation performance Simply press the button on the handle to mix automatically, easy to use