Capacity: 11oz (325ml) Material: double-layer ceramic, top stainless steel 304 (18/8), anti-fingerprint PVD surface treatment made in China Shelf life: no shelf life under normal use Use & use: for water or beverage Storage method: After washing, dry the water and keep it dry to prevent bacterial growth. Maintenance notes: Do not continue to use the ceramic if it accidentally collapses or ruptures. Please refer to the attached manual for details. Precautions for use: 1. Suitable for cold/hot drinks. 2. Do not soak in water for a long time. 3. Wash the product with a neutral detergent and water before and after the first use. 4. Please use a soft cloth or sponge to clean the product. Do not use a melon cloth or an iron brush to clean it. 5. Do not place this product in electrical appliances such as dryers and microwave ovens. 6. Do not be near fire or hot objects to avoid damage to the goods. 7. When you have a hot drink, keep it out of the reach of children. 8. After washing, please dry the water and keep it dry to prevent bacteria from breeding. 9. Ceramic products are easy to break, please use them carefully, and please handle them with care. 10. If the ceramic is inadvertently collapsed or broken, do not continue to use it.