flask 1.capacity: 1L 2.color: siliver 3.material: stainless steel 4. logo: customized Travel Flask1, ... steel,2,Keep warm or cold more than 20hours,3,push and pour button, keakproof4,food safety standard, ... leakage.open the lid by turning counter-clock wise.3 Please clean with hot water or cleaning fluid after ... or with proper instructions before use. stainless steel bullet-type vacuum travel flask