Main Features:- Durable stainless steel construction keeps liquids hot or cold- Good effect of heat insulation: in 22 degree Celsius indoor environment, fill the cup with 95 degree Celsius water, it'll no less than 55 degree Celsius after 6 hours- Vacuum insulation technology: where air is sucked out, creating a vacuum between the wall to minimize the effect of outside temperature- Open the drink lid by pushing the button easily, and lock it tightly by pressing the lid- Leak-proof design ensures no liquid can escape- Compact design takes up minimal space while maximizing capacity for effortless transport and storage- Detachable design: can be taken apart for easy cleaning- 500ML large capacity is designed for carefree travel Capacity: 500ml Material: Plastic,Stainless Steel 0.3550 Package weight: 0.409 kg Product size (L x W x H): 6.50 x 6.50 x 23.50 cm / 2.56 x 2.56 x 9.25 inches Package Contents: 1 x Stainless Steel Vacuum Flask