Features: The liner is made of premium 304 stainless steel, safe and healthy, very durable. Has good sealing with silicone loop, which is leak-proof, safe to use without scald. Beautiful and elegant appearance makes it a great gift for your friends. Excellent heat insulation performance, it can keep water cold or warm for about 8-10 hours. The pressure valve on the lid helps exhaust when the inner air pressure is large to some extent. Bottom anti-slip rubber ring keeps the mug more stable and protects it from abrasion. Specification: Condition: 100% New Material: Stainless Steel, PP, Silicone Optional Color: Green, Blue, Pink Capacity: 480mL Size: approx. 9.1*15.1cm/3.58*5.94in Weight: approx. 452g/15.94oz Package List: 1 * Vacuum Mug 1 * Spoon Note: 1. Please allow 1-3cm error due to manual measurement, thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos displayed in photos may be showing slightly different from the real object, please take the real one as standard.1The liner is made of premium 304 stainless steel, safe and healthy, very durable 2Has good sealing with silicone loop, which is leak-proof, safe to use without scald 3Beautiful and elegant appearance makes it a great gift for your friends 4Excellent heat insulation performance, it can keep water cold or warm for about 8-10 hours 5The pressure valve on the lid helps exhaust when the inner air pressure is large to some extent