5L Copper Vacuum Flask in Black. the Swiss Peak Elite Series Are with Vacuum Insulation & Double Wall 18 & 8 Grade Stainless Steel Metal. the Powder Coated Black Colour is Built to Last! No Fading or Cracking Here! the Inner Wall is Plated with Copper for Ultimate Conductivity to Keep Drink Hot for 8 Hours & Cold for 24 Hours. Hand Washable & Leakproof. Content 500 Ml. Minimum Quantities Apply.