1. Material: 304 stainless steel inner tank, 201 stainless steel shell, food grade PP 2. Thermal insulation performance: 12-24 hours 3. Capacity: 350ml, 420ml 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. Double-layer thermal insulation, good thermal insulation effect 7. Sealed and leak-proof, acid and alkali resistant 8. Size: 350ml: 7.1 x 7.1 x 21cm, 420ml: 7.1 x 7.1 x 24.9cm 9. Weight: 350ml: 220g, 420ml: 245g
