... sets 1.capacity: 500ml+220ml 2.color: siliver 3.matterial: double wall stainless steel 4.logo: customize Vacuum Flask ... copy of B/L or before delivery1, Material: double wall stainless steel,2,Keep warm or cold ... more than 24hours,3,push and pour button, keakproof4,food safety standard ... .open the lid by turning counter-clock wise.3 Please clean with hot water or cleaning fluid ...