Vacuum heat insulation layer, long-term insulation Thickened bottom, strong and wearable, strong and durable Portable handle, convenient, safe and practical 304 stainless steel liner, corrosion-resistant, oxidation resistant Silicone sealing ring combined with cup lid, no water leakageMade of premium stainless steel, the insulation cup is durable and has long-lasting use. Excellent stoving varnish features great workmanship and comfortable hand touch. The sealing backup ring is adopted from premium silicone to ensure the leakproofness. It is ideal for home, office, school, travel, and outdoor use.FeatureMaterial: Stainless steel.Size: About 25 x 6.9 x 5cm/9.8 x 2.7 x 2inch.Made of premium stainless steel, the insulation cup is durable and has long-lasting use.The inner part of the cup is made from food-grade material which makes it easy to clean and safe to use.Excellent stoving varnish features great workmanship and comfortable hand touch.It can remain brand new after using for a long time.The sealing backup ring is adopted from premium silicone to ensure leakproofness.It can effectively avoid water leakage and you can take it anywhere you want. A smooth cup mouth offers you an enjoyable drinking experience.Suitable for home, office, travel, and outdoor use.Package Including 1 x 500ML Vacuum Insulation Cup Stainless Steel Cup Thermal Bottle Travel Mug for Home Office Outdoor Use