1、Stainless Steel: Made from 304 stainless steel, this water bottle is safe and healthy, sturdy and easy to clean. Sealed without leakage has excellent thermal insulation. 2、Long Lasting Insulation: Insulated design effectively maintains temperature for up to 12 hours, keeping your drinks hot or cold in cold and hot weather. 3、Large Capacity: The vacuum flask has 500ml capacity, suitable for daily life and outdoor travelling. With three lids, can meets different needs and great for replacement. 4、Portable: Designed to be portable and easy to carry with a carrying handle on the lid, this insulated bottle is ideal for travelling and outdoor use, adding convenience to your life. 5、Exquisite Appearance:This insulated water bottle is designed as a straight cup, has a comfortable hand feel,can be anti slip and anti drop. Suitable for students and travellers. Item Type: Stainless Steel Thermal Cup Set Capacity: 500ML Material: Inner 304, Outer 201 Stainless Steel Size: Approx. 23.5x6.5cm / 9.3x2.6in Heat Preservation Duration: 12 hours 1 x Thermal Cup 2 x Cup Lid