Printable Vacuum Flasks : Stainless Vacuum Water Cup Material: stainless steel Height: 24cm Body Material: metal Thermal Insulation Performance: 12-24 hrs Anti-corrosion Coating: Equipped Bottle Type: Vacuum Shape: Straight Cup Capacity: 500ml Accessories: with lid Power Supply: Battery powered Smart Type: Digital Sensor Batteries Required Mode Digital. Function: Keeping drinkables Hot or Cold for 12 hrs.