48 hour heat retention with this 1600ml nonrust steel vacuum flasks feature a pressure button spouts and vacuum insulated construction for efficient hot water access Ideal for families, worker, and outdoors enthusiasts seek a child friendly solution for hot beverages without heavy kettles Perfectly sized for kitchen counters, campings, or road adventure, maintaining proper water temperature during extended indoor / outdoors activity Crafted with food grade nonrust steel interior, nonslip base, and wide mouths design, this sturdy vacuum flasks ensures safe pouring and cleaning Engineered with double walled insulation and leak proof sealing, this premium vacuum flasks ensures spill resistant across home, workplace, and travel environment