Delicate 304 Stainless Steel Wood Grain Thermos Cup, Capacity: 500ml(Primary Color)1. Material: 304 stainless steel inner tank, 201 stainless steel shell, food grade PP 2. Thermal insulation performance: 12 24 hours 3. Capacity: 400ml, 500ml 4. The inner tank is made of 304 stainless steel, which is healthy and safe, and can be used with confidence 5. Silicone non slip bottom design, stable and not easy to fall, reduce the wear of the bottom of the cup 6. The mouth of the cup is round and does not hurt the mouth 7. Retro wood grain